ZODIAC CIPHERS
Richard Grinell, Coventry, England
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"THERE'S NO DOUBT I WILL DO MY THING"

1/14/2023

 
As shown numerous times before, we can usually find the inspiration for Zodiac communications by looking at the most recent newspaper articles published in the Bay Area or Los Angeles. The November 21st 1969 letter to the San Jose Police Department was possibly directed at the recently widowed Diane Kennedy Pike, whose husband James Albert Pike had met an unfortunate death in Israel in September (information provided by Cragle). The letter caused enough alarm to institute 24-hour surveillance on the young woman and her residence. Information regarding this letter is sparse, but the language adopted in this communication is taken directly from the last San Francisco Chronicle newspaper article on November 13th 1969 entitled Zodiac 'Legally Sane', featuring the Zodiac Killer's 340 cipher and investigators attempts to snag the murderer of five.    
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The newspaper snippet on the left reads "Through physical clues Zodiac has clumsily left behind at crime scenes and bits and pieces of information about himself he has inadvertently revealed in letters sent to The Chronicle, police feel sure there will be no doubt they have the right man in custody when an arrest is made". Eight days after this newspaper article was released, and thirteen days after he had claimed seven victims (the canonical five and the two San Jose murders of Snoozy & Furlong), the Zodiac Killer wrote to the San Jose Police Department and responded to "there will be no doubt they have the right man in custody when an arrest is made", by writing "There's no doubt I will do my Thing". The Zodiac Killer was clearly confident that no arrest was forthcoming, and his reign of terror would continue by doing his "Thing". His chronological list of victims by using months of the year would continue, when he wrote November=8 in his latest letter. He also added a short six character code of ~+62+~.  

His next letter, postmarked December 7th 1969 from Fairfield, was shown to be authentic by pre-empting the pleading nature of the Melvin Belli letter and his use of another code of 38 characters. This code contained similar characters to the 340 cipher, unlike the following 13-Symbol and 32-Symbol ciphers. It opened the door to the possibility that the 38 character code was somehow related to the 340 cipher and maybe contained a clue to its construction. Druzer, an avid and diligent Zodiac researcher, mailed me the 38 character code deciphered with the 340 cipher key. The result is mostly garbled, but he drew my attention to the final line of both codes ending in "death". The Zodiac Killer only took a 4+ horizontal combination of characters from the 340 cipher to the 38 character code on two occasions. Those were HER> and AIKꞮ+, which spelled the standalone words of IRON and DEATH before the diagonal shift was applied to the 340 cipher to reveal the message. Despite the last two rows of the 340 cipher being a mixture of forward and backward reading words, the word "death" sits at the end of both the 340 and 38 character ciphers, indicating that this word likely concludes the message in each instance. 

Other horizontal words do exist in this format, however, the Zodiac Killer gave us 4 and 5 characters which bound the 340 and 38 character ciphers together, and both formed English words. The Zodiac Killer began and ended his 38 character code with two prominent sections from the start and end of the 340 cipher, both of which contained visible words before any shift was applied (the final word remaining static). This may be another observation, which confirms to the doubters the December 7th 1969 letter as an authentic Zodiac communication. Unless of course, the 38 code hoaxer identified two passages of 4 and 5 characters from the undeciphered 340 cipher, that just happened to accidentally find two English words after the 340 key was applied. This hoaxer would also have to guess that by separating the prominent ZO∆AIK
Ɪ+ characters on the bottom line of the 340 cipher, into AIKꞮ+ on the bottom line of the 38 character code, he would be reducing these characters to create something meaningful. He apparently did. By separating these characters into the five visible at the end of the 38 character code, he created the word "death", just like the solved 340 cipher. Druzer pointed out the same thing, stating "The most curious/compelling feats are that the author isolated actual words, most notably death, and that he refrained from copying Zodaik, which would certainly be expected of a hoaxer". In other words, he dismantled the ZO∆AIK element, while leaving Ɪ+ in place, to form "death" as the final word on the 38 character code. This appears to show knowledge of the hidden message in the 340 cipher. 

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The writing on the November 21st 1969 letter
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November 13th 1969 article
The above image from the San Francisco Chronicle on November 13th 1969 shows the correlation on three rows of the 38 character code to the 340 cipher. We have 4, 5 and 5 characters from three rows of the 38 character code, organized in the correct order to three rows on the 340 cipher. The crucial 10th row of the 340 cipher which begins the second section of the 3-part cipher (9, 9 and 2), contains the four symbols of ~+62+~ in the correct order (and FB which numerically equals 62). Both the November 21st 1969 and December 7th 1969 letters were unreleased to the public, so it would be difficult to envisage how two different authors would choose to supply two relatively short codes that mimicked important features of the 340 cipher independent of one another. The three rows of the Z38 highlighted in blue rectangles above, all either begin or end a row on the 340 cipher - as does the six character code of the November 21st 1969 letter. Was the 38 character code on December 7th 1969 a clue to the construction of the 340 cipher or somehow related to the message ultimately found within it? If so, then the short code of ~+62+~ in the November 21st 1969 letter could be somehow related to the 340 cipher also. The December 16th 1969 letter, also mailed from Fairfield, contained another short code of five characters. This completed a quartet of puzzles from the Zodiac Killer in just over a month.

​The Zodiac Killer was likely reading this newspaper article on November 13th 1969 when he used the wording "There's no doubt I will do my Thing", so it's perfectly feasible that the presence of his 340 cipher prominently displayed within this article, may have been the inspiration to provide further codes based upon its construction. The newspaper article concluded with "Amateur cryptographers by the hundreds were at work trying to decode the cryptogram from Zodiac published in yesterday's Chronicle. It was an amateur - a Salinas teacher - who cracked Zodiac's cipher message in August to which he said the people he killed would serve him as his slaves in paradise. One cryptographer, who has studied the latest message, says it definitely contains word patterns hidden in the 340 symbols. "There is a definite message" he said. "Testing shows it is not just gibberish. Once that is determined then it's just a matter of patience before it pieces itself together". Did the Zodiac Killer take note of this section and provide "bits and pieces" in his next two codes to help in its decryption? 
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THE SPIRIT OF ZODIAC

7/7/2022

 
Recently I have been examining the inspiration behind the "Good Citizen" letter mailed on October 7th 1969, and its possible connection to the murder of Robert Salem at 745 Stevenson Street, San Francisco on April 15th 1970. Cragle, a contributor to both Zodiac forums, found a viable connection to 680 Beach Street through Carl John Welz, Jerry Hatcher and Robert Salem, who all worked at the Haslett Warehouse in 1969. To get up to speed on this unfolding story, please visit Robert Salem-The Complete Story. Cragle has recently contacted me again with even more compelling material to advance this story.

The message in the Good Citizen letter to Sergeant John Lynch read "On occasion, while thinking of the code letters, the pencil wrote: Go to 56 Beach Street. I get the name Jerry, perhaps he knows people or his name is XXXXXXX".  Cragle correctly concluded that this form of writing is called automatic writing or psychography, which is a claimed psychic ability allowing a person to produce written words without consciously writing. Scientists and skeptics consider automatic writing to be the result of the ideomotor effect and even proponents of automatic writing admit it has been the source of innumerable cases of self-delusion. Automatic writing is not the same thing as free writing. Spirit writing, later called Fuji (planchette writing), has a long tradition in China, where messages from various deities and spirits were received by mediums since the Song dynasty. In the 19th century, messages received through spirit writing led to the foundation of several Chinese salvationist religions. The spread of Chinese cultural techniques, such as printing and painting, introduced the influence of "spirit writing", practiced by Japanese Zen Ōbaku monks, who were said to communicate with an ancient Taoist sage credited with creation of the kung fu system. Parapsychologist William Fletcher Barrett wrote that "automatic messages may take place either by the writer passively holding a pencil on a sheet of paper, or by the planchette, or by a ouija board. In spiritualism, spirits are claimed to take control of the hand of a medium to write messages, letters, and even entire books. Automatic writing can happen in a trance or waking state. Some psychical researchers such as Thomson Jay Hudson have claimed no spirits are involved in automatic writing and the subconscious mind is the explanation. Wikipedia. So, it's pretty apparent the author of the Good Citizen letter was referring to spirit messages received through a planchette or ouija board.
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Miss Winifred Moyes practiced this form of mediumship. Here is an excerpt from a Christian spiritualism website: Perhaps only those who were closest in the work could truly judge the remarkable gift of mediumship possessed by Miss Moyes, and the sensitiveness which enabled her to be used by Zodiac. Suffering from ill-health from the age of ten, when she was eventually used as an instrument by Zodiac, her weak physical body was compensated for by an iron will and a determination which forced the body to do the bidding of the Spirit. Such was her state of health that there were many times when Spirit Power alone enabled Zodiac to control his instrument and deliver his message. The strength of Miss Moyes lay in her implicit faith in the Christ power around her. Zodiac's first act on "taking control" was to place his medium under the protection of the Cross on the altar with upstretched arms and using the invocation: "Saviour Christ, into Thy hands I commend the spirit of this Thy child". Miss Moyes dedicated her gift of mediumship entirely to Zodiac's work. How closely she was attuned to the higher vibrations of Zodiac is shown in the perfection of the messages given. They are given in purity, unobstructed by the physical mind. Read the full story. 
PictureJames Albert Pike
The important section, not withstanding the constant reference to "Zodiac", was the following "My sister-in-law used the planchette several times, and we were very disappointed when the message came that she must not go on with it, and that i was to take the messages instead. I protested that the board would not move for me, and the reply came "Try to pencil alone". 

It is clear that the author of the Good Citizen letter when referring to ESP and the pencil writing, was referring to messages received from the afterlife. Cragle pointed out that just six weeks later, on November 21st 1969, the Zodiac Killer mailed a communication directed towards Diane Kennedy Pike through the San Jose Police Department, that caused police to instigate 24-hour protection because of the threat on the widow. She had recently lost her husband, James Albert Pike (born February 14, 1913 – died September 3–7, 1969), who was an American Episcopal bishop, accused heretic, iconoclast, prolific writer, and one of the first mainline, charismatic religious figures to appear regularly on television. In 1966, after they had shared a sabbatical study at Cambridge University, Pike's son, Jim Jr., fatally shot himself in a New York City hotel room. Shortly after his son's death, Pike reported experiencing poltergeist phenomena—books vanishing and reappearing, safety pins open and indicating the approximate hour of his son's death, along with half the clothes in a closet disarranged and heaped up. Pike led a public pursuit of various spiritualist and clairvoyant methods of contacting his deceased son to reconcile. In September 1967, Pike participated in a televised séance with his dead son through the medium Arthur Ford, an ordained minister in the Disciples of Christ church. Pike detailed these experiences in his book The Other Side (released on January 1st 1968). In 1968, in defiance of C. Kilmer Myers, the Bishop who'd succeeded him, he married Diane Kennedy, a Methodist student twenty-five years his junior, with whom he had collaborated on The Other Side. Wikipedia   ​

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The connection between the Good Citizen letter and the San Jose letter can now be seen, through spirituality, mediumship, seance and the afterlife. In the words of Cragle: "So let us look at this is relation to the Welz's. Christian Science strongly condemns the idea of spirituality as this is a direct contradiction to their belief system, and we have a couple living in San Francisco responsible for the main publication of the Christian Science faith, being referenced in a communication that "was" made by one of the fundamental practices in spiritualism. I can only interpret this as a direct jibe at Christian Science and their beliefs. Also we have the two correspondences being linked by their theme and the associated work of Winifred Moyes and the "Zodiac" speaking through her. All tying in with Zodiac ideas on the afterlife. Something that is interesting regarding Winifred's "Zodiac" is that the small group of people which formed around her were the Zodiac Circle and their symbol was a cross. "Total control refers to the trance states into which a person goes when they are allowing another soul to pass messages"  
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​One month after the letter to Diane Kennedy Pike, the Zodiac Killer wrote a letter to Melvin Belli on December 20th 1969, in which he stated "I cannot reach out for help because of this thing in me wont let me. I am finding it extreamly difficult to hold it in check. I am afraid I will loose control again and take my nineth & possibly tenth victom. Please help me. I am drownding. At the moment the children are safe from the bomb because it is so massive to dig in & the triger mech requires much work to get it adjusted just right. But if I hold back too long from no nine I will loose all controol of my self & set the bomb up. Please help me I can not remain in control for much longer". Was the thing inside of him the spirit of Zodiac, controlling his every move? Or was this what he wanted us to believe?  
If we continue the angle of spiritualism, the afterlife and contacting of the dead, and consider that the April 20th 1970 letter was mailed on the same day the Robert Salem murder story broke in the newspapers, then we can look at the 13 character code beginning with A and ending with M (half the alphabet). The ouija board was split into the two halves of the alphabet and contained the numbers 0 and 8, present in the 13 character code.

LATEST UPDATE, INCLUDING POLICE REPORTS & PHOTOGRAPHS
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Thanks to Cragle

THE WIDOW IN THE NOVEMBER 21ST 1969 SAN JOSE LETTER?

7/8/2021

 
On November 21st 1969, somebody claiming to be the Zodiac Killer threatened a widow in San Jose, resulting in 24-hour protection given to the woman in question. The FBI file read "For the information of the Bureau and Sacramento, after a cursory analysis, officers of the San Jose, California PD, believe widow in message may be Mrs (redacted), San Jose, California. San Jose PD instituting 24 hour surveillance on Mrs (redacted)". It is fairly evident by the wording in the FBI file that the address of the woman wasn't given by the sender, hence the cautionary wording in the passage of "believed to be the widow". If this threatening letter was mailed by the Zodiac Killer, it is extremely likely he plucked this woman's name from the newspapers. Therefore, we should be looking at a recent widow, either connected to a Zodiac investigation, or independent of a Zodiac investigation, chosen because she featured in recent newspaper articles (possibly in November), that was relevant to Zodiac. Also, by choosing somebody to threaten in San Jose only thirteen days after his claim of involvement in the August 3rd 1969 San Jose murders of Kathie Snoozy & Debra Furlong, the Zodiac Killer could maintain the threat in San Jose and so bolster his involvement in that region. The following analysis will highlight one possibility for the woman in question, but not outright claim she was the widow featured in the November 21st 1969 letter. This possible connection was unearthed by the fantastic work of Cragle, a contributor to both main Zodiac forums, who trawled the newspaper articles in the run up to the mailing of this threatening letter.       
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PictureJames Albert Pike
James Albert Pike (born February 14, 1913 – died September 3–7, 1969) was an American Episcopal bishop, accused heretic, iconoclast, prolific writer, and one of the first mainline, charismatic religious figures to appear regularly on television. In 1966, after they had shared a sabbatical study at Cambridge University, Pike's son, Jim Jr., fatally shot himself in a New York City hotel room. Shortly after his son's death, Pike reported experiencing poltergeist phenomena—books vanishing and reappearing, safety pins open and indicating the approximate hour of his son's death, along with half the clothes in a closet disarranged and heaped up. Pike led a public pursuit of various spiritualist and clairvoyant methods of contacting his deceased son to reconcile. In September 1967, Pike participated in a televised séance with his dead son through the medium Arthur Ford, an ordained minister in the Disciples of Christ church. Pike detailed these experiences in his book The Other Side (released on January 1st 1968). In 1968, in defiance of C. Kilmer Myers, the Bishop who'd succeeded him, he married Diane Kennedy, a Methodist student twenty-five years his junior, with whom he had collaborated on The Other Side. Wikipedia

The Other Side, detailed James Pike's attempts to contact his dead son in the afterlife, described "as 
a moving narrative of a father's efforts to save his son from enslavement to psychedelic drugs, a tragic story of a young and gifted man's premature death, a startling story of poltergeist occurrences that led the father and other witnesses to believe that from beyond the grave his son was trying to get in touch, and a detailed account of how this communication proceeded during a time when the father was under accusation for heresy for believing too little".

She became Diane Kennedy Pike, an American writer and educator who lived in San Jose at the time this threatening letter was mailed. She was a school teacher at Willow Glen High School in San Jose between 1962 and 1964. It has been argued on this website that the Zodiac Killer made persistent threats on school teacher Daniel Williams, by way of threatening phone calls to his residence in Martinez and subtle references in the Zodiac Killer's two previous November communications, starting on October 23rd 1969 and ending on November 9th 1969.

Having recently become a widow after the tragic death of her husband in Israel in September 1969, Diane Kennedy Pike was featured in many newspaper articles in the intervening period before the November 21st 1969 "Zodiac" letter arrived. In August 1969, Pike and Diane traveled to Israel, to do research for a proposed book on the historical Jesus. They attempted to travel to Qumran but during their journey through the Judean Desert they got stuck in a deep rut on a dirt road. After leaving the vehicle they went in search of help, with Diane ultimately separating from her older husband (who was in a serious condition). She eventually found help and a rescue party began the search. Unfortunately, it came too late for James Pike, who was found deceased five days later on September 7th 1969. By targeting this widow in San Jose (because of her history and connections), the Zodiac Killer may have thought this would secure him more front page coverage. However, this communication seemingly fell by the wayside - and as of writing - no newspaper coverage of this threat has been uncovered. The Other Side, featuring the afterlife, by the high profile authors of Diane and James Pike, along with his recent death in Israel and the publicity that surrounded it, may have been the required incentive for the Zodiac Killer to threaten this widow in San Jose on November 21st 1969. But until the FBI file is unredacted, we will never know for sure.

DID ZODIAC POISON DANIEL WILLIAMS? [PT4]

12/6/2020

 
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Daniel Williams (24), a Salesian High School teacher, started to receive malicious phone calls to his 1234 Bush Street, Martinez residence on October 23rd 1969. These calls continued for ten days and culminated with somebody breaking into his residence on November 2nd 1969 and lacing his 7-Up soft drink with enough arsenic to kill. The caller, claiming to be the Zodiac Killer, told Daniel Williams over the phone that he "had gone to a Martinez school in search of victims but left when he found police there", mocking law enforcement by stating “I’m too smart for them". This was considered particularly relevant because of the language Zodiac adopted on November 9th 1969 in the Bus Bomb letter mailed to the San Francisco Chronicle of "The police shall never catch me, because I have been too clever for them".

The Zodiac Killer's wording was also considered suspicious in the Dripping Pen card, when on November 8th 1969 he stated "This is the Zodiac speaking. I though you would nead a good laugh before you hear the bad news. You won't get the news for a while yet". The wording smacked of unfinished business, especially when you consider that he wrote "up to the end of Oct I have killed 7 people" in the following communication. It was now November 9th 1969, but he made a point of claiming seven victims only up to the end of October. These sections of text highly suggestive he was in the process of acquiring victim number eight. That victim could very well have entailed the ongoing pursuit of the Richmond High School teacher, Daniel Williams, to which this number had been reserved. These ideas may be speculative, but the story doesn't end there.

After the November 2nd 1969 attempted poisoning, Daniel Williams reported to police that the prowlings he had experienced around his residence during the time of the sadistic phone calls, continued after the break-in and failed poisoning. The persistent threats on the life of Daniel Williams would also fail to cease.

On Wednesday, November 5th 1969, somebody rang the Martinez Police Department at 12:30 am stating "There's going to be a shooting at 1234 Bush Street", before immediately hanging up. The threat to find victims at a Martinez school, coupled with the menacing phone calls were not dissimilar to recent Zodiac activity during the month of October. After the threat to shoot Daniel Williams at his residence, police instigated surveillance in the immediate area of Bush Street for the remainder of that morning, but no suspicious activity was detected. The next Zodiac Killer communications would be postmarked just two and three days later, with the promise of more bad news and a victim count left dangling at the end of October. If the perpetrator of the crimes inflicted upon Daniel Williams wasn't the Zodiac Killer, then it was a pretty determined hoaxer claiming to be him.

In the sadistic phone calls to Daniel Williams the caller also promised to "kill the lady in the blue house". On November 21st 1969, San Jose Police had to provide 24-hour surveillance for a woman, after somebody claiming to be the Zodiac Killer mailed a threatening letter identifying her as the target. The letter was accompanied by the wording "There's no doubt I will do my Thing!" reminiscent of the Dripping Pen card of "I could do my Thing". Of course, we don't know whether the threats in Martinez and San Jose were the infamous Zodiac Killer, but they certainly could have been.  

I WILL "KILL THE LADY IN THE BLUE HOUSE"

11/27/2020

 
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An unknown caller claiming to be the Zodiac Killer threatened Daniel Williams, a Richmond high school teacher, from October 23rd 1969 to November 2nd 1969. It was reported that the sadistic caller stated he was going to "kill the lady in the blue house". Despite previous exploration of this subject, here we will examine two new ideas related to the lady in the blue house. One will be a simplistic approach, while the second may understandably be regarded as far-fetched.

It could be argued that it would be rather meaningless for the sadistic caller to threaten a woman in a blue house, had this woman got no connection whatsoever to Daniel Williams. The caller was clearly targeting Daniel Williams and attempting to unnerve him. When Daniel Williams left his house on November 2nd 1969, the killer gained access by prying open his screen door and placing some arsenic in his soft drink. There is every chance that the perpetrator had followed Daniel Williams to some extent and was aware of his departure from his Martinez home that day. Had this person also seen Daniel Williams visit or converse with a woman in a blue house, possibly on Bush Street where he lived - and knowing that he was friendly with this woman - he knew that a threat to kill her would resonate with the school teacher? Threatening an unknown woman to Daniel Williams, plucked from nothing more than his imagination, appears rather pointless. However, there is a more unlikely alternative.  

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The newspapers stated that the caller gave no explanation regarding the lady in the blue house, so either he expected Daniel Williams to work it out, or he had planned a future attack on a woman unknown to Daniel Williams, but hoped that Daniel Williams would relay his intention to "kill the lady in the blue house" to police. When his next attack was then threatened or carried out, police would understand that he was responsible for both events. It was suggested in the previous article that the sadistic caller may have had unfinished business with Daniel Williams after the failed poisoning, hence his statement of "up to the end of Oct I have killed 7 people" in the November 9th 1969 Bus Bomb letter, thereby leaving investigators to speculate upon his intentions during the beginning of November and the likelihood of murder for the remainder of the month. Since nothing materialized with respect to Daniel Williams in this window of time and subsequent to November 9th 1969, it could be reasoned that it was just another idle, but menacing threat from the Zodiac Killer (assuming he played any part in the Daniel William affair). But what of his threat to "kill the lady in the blue house". 

The next possible letter by the Zodiac Killer arrived at the San Jose Police Department on November 21st 1969, threatening a woman and accompanied by the wording "There's no doubt I will do my Thing!". In the Dripping Pen card the Zodiac Killer wrote "I though you would nead a good laugh before you hear the bad news. You won't get the news for a while yet. PS could you print this new cipher in your frunt page? I get aufully lonely when I am ignored, so lonely I could do my Thing !!!!!!  Des July Aug Sept Oct = 7". Was the communication on November 21st 1969 the bad news he had promised us, and the culmination of the threat to "kill the lady in the blue house"? In this communication the author threatened a widow, with enough detail in the letter that police were able to identify her. They took the threat extremely seriously, instituting 24-hour surveillance on her and her property. It is impossible, fifty-one years after the fact, to establish whether any connection existed between this woman and Daniel Williams. The likelihood of a connection is extremely remote, but it would have been interesting to find out the color of her house. 

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THE DECEMBER 19TH 1969 ZODIAC PAYPHONE CALL

3/9/2020

 
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It is very likely that the Lake Berrryessa attack on Bryan Calvin Hartnell (20) and Cecelia Ann Shepard (22) was inspired by the newspaper articles in the August 4th 1969 San Francisco Examiner and August 6th 1969 San Francisco Chronicle. Both ran major news articles on the brutal murders of Deborah Furlong (14) and Kathy Snoozy (15) in San Jose on August 3rd 1969, while the Zodiac Killer was relegated to the lesser pages, despite his three murders and boastful communications, that included his cryptic puzzles. He knew that a savage close-quarter knife attack was required - and the tactic worked - because law enforcement subsequently pondered a connection between the Zodiac crimes and the Snoozy and Furlong murders in San Jose. The Zodiac Killer also acquired his front page coverage and the added bonus of bolting two extra victims onto his total in the Dripping Pen card on November 8th 1969. He would further implicate his connection to the San Jose murders by threatening a widow in the November 21st 1969 San Jose code letter. However, it didn't stop there.

There is one crucial feature of the first eight Zodiac letters, in that none explicitly threatened the lives of law enforcement, other than the wording "
If you cops think I'm going to take on a bus the way I stated I was, you deserve to have holes in your heads" in the November 9th 1969 Bus Bomb letter. Then, three unpublished letters and one particular phone call arrived. The San Jose code letter threatened a woman in San Jose on November 21st 1969, followed by the December 16th 1969 Fairfield letter threatening cops in numerous cities, including San Jose. Both unpublished, yet both continuing the San Jose theme. It is also significant that the November 21st 1969 communication was mailed directly to the police in San Jose. In between the November 21st 1969 and December 16th 1969 letters was another Fairfield letter, mailed on December 7th 1969 and also threatening cops. It stated "I will kill again, so expect it any time the will be a cop". We now have three communications with a continuing theme of threatening police, none of which were published in the newspapers. Either these letters were from the Zodiac Killer, or a hoaxer had inferred the San Jose connection from the "Aug" month on the November 8th 1969 Dripping Pen card all by himself. Bearing in mind the similarity between both Fairfield letters in handwriting and mailing location, and the "real" Zodiac mailing the Melvin Belli letter on December 20th 1969, pleading for "help" just like the December 7th 1969 Fairfield letter, it leaves little doubt of a single author throughout. But what of the phone call to police on December 19th 1969, the day before the Melvin Belli letter?    

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On December 19th 1969, somebody claiming to be the Zodiac Killer again threatened cops, making a phone call to Sergeant Robert Rengsdorff of the San Jose Highway Patrol (see article on right), stating "I am going to kill five of you officers and a family of five between now and Monday". This threat towards San Jose police and a family of five was issued on a Friday, exactly as was the November 21st 1969 letter, mailed to San Jose police threatening harm on a widow. After the threat on the widow was thwarted by 24-hour police surveillance on her residence, was this the response, to once again instigate fear in the San Jose community? We know he was threatening the lives of numerous police officers, but the threat on five members of a family appears chosen.

I now believe this was the Zodiac Killer. This telephone call came off the back of a previous direct correspondence with San Jose police just a month earlier. It also continued the theme of threatening police officers (five to be exact), just like the unpublished Fairfield letters -  in particular, the December 16th 1969 communication threatening the lives of up to 38 police officers. Two contacts from an individual just three days apart, both claiming multiple threats on police. For this to be two separate individuals, not only targeting San Jose police in such close proximity to one another, but also be separate to the author of the unpublished November 21st 1969 letter to San Jose police, would be quite something. There may be even more reason to believe the phone call to
Sergeant Robert Rengsdorff was the Zodiac Killer.

The threat of killing "a family of five between now and Monday" is rather specific, almost as though he had earmarked a couple with three children. We know the Zodiac Killer read the August 4th 1969 San Francisco Examiner and August 6th 1969 San Francisco Chronicle, which inspired his attack at Lake Berryessa and subsequent claim to the Snoozy and Furlong murders by the addition of "Aug" on the November 8th 1969 Dripping Pen card. This is an obsession he would carry forward into 1971, referencing the Snoozy and Furlong murders at least two more times, if not three. The August 6th 1969 San Francisco Chronicle article, entitled The Frenzy Of San Jose Girls Slayer, read under the banner of Children "The other Furlong children are Glen, 16; Floyd, 12, and Pamela, 11.  Furlong said he did not know and had not yet talked to Kathy's parents, Mr. and Mrs. Wilfred Snoozy. Both Snoozy, a carpet layer, and Mrs. Snoozy reportedly are in a state of collapse. Her funeral has been scheduled Friday at 11 a.m. at the Place Funeral Home in Los Gatos. Burial will be at Oak Wood Cemetery in Santa Cruz. Funeral services for Kathy will be held tomorrow (Thursday) at 2 p.m. at the Oak Hill Memorial Park Mortuary in San Jose. Burial will be at Oak Hill Memorial Park".  

The Furlong's had three surviving children called Glen, 16; Floyd, 12, and Pamela, 11, which ties in with the threat from the December 19th 1969 telephone caller to
kill "a family of five between now and Monday". This would not only have continued the threat regarding the Snoozy and Furlong murders, but also the phone call was directed towards San Jose. The question to be asked is, did law enforcement consider this a possible connection to the Furlong family and offer them protection as had been given to the widow on November 21st 1969? We know of two certain Zodiac phone calls, so was this the third? The August 6th 1969 San Francisco Chronicle article also contained the burial location of Kathy Snoozy at Oak Hill Memorial Park. The cemetery is situated in the Monticello neighborhood of San Jose, which featured in Zodiac's July 13th 1971 Monticello card.  

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VICTIM NUMBER EIGHT

7/14/2019

 
The Zodiac Killer may have been inspired to switch from gun to knife after the extensive front page coverage given to the murders of Debra Gaye Furlong (14) and Kathy Ann Snoozy (15), who were found murdered on August 3rd 1969 in the Bay Area of San Jose. They were savagely attacked with a penknife. The chief medical examiner described the ferocity of the attack: "Dr. Hauser, so shaken by the brutality of the crime he could scarcely find words, said the Snoozy youngster had 150 wounds on her back, 50 on the front and a "storm" of punctures on her neck. Deborah's body had about 100 wounds on her back and upper front and a dozen on her neck". Disillusioned by his lack of front page coverage, the Zodiac Killer struck in Lake Berryessa on September 27th 1969 inflicting 16 knife wounds on the defenseless Bryan Hartnell and Cecelia Shepard. He would write on the card door of Bryan Hartnell's vehicle minutes after the attack, stating Vallejo 12-20-68, 7-4-69, Sept 27-69 -6:30 by knife. On November 8th 1969 he would not only claim the murder of Cecelia Shepard, but the murders of Debra Furlong and Kathy Snoozy in the August of 1969, writing Des, July, Aug, Sept, Oct = 7 on the greeting card. 
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Just thirteen days after the mailing of the 'Dripping Pen' greeting card, the Zodiac Killer would write another cryptic message on November 21st 1969 - this time to the San Jose Police Department (the city of the Snoozy and Furlong murders), bumping up his running victim total to November = 8 and beginning the message with "There's no doubt I will do my Thing!". Bearing in mind the Zodiac Killer had switched to a knife at Lake Berryessa to achieve "front page coverage", and claimed the savage knife murders of two teenage girls, who had both been stabbed in excess of 100 times, the Zodiac Killer's claimed 8th victim should mirror these attacks. If he was going to keep up the terror in the minds of the American people, the 8th victim would likely have been murdered in California just prior to the mailing of the November 21st 1969 letter - and stabbed multiple times. 
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Although unidentified until 2016 and known only as Jane Doe 59, Reet Jurvetson (19) was discovered on November 16th 1969 by Trevor Santochi, who was hiking on Mulholland Drive in Los Angeles. Reet Jurvetson had been viciously stabbed in excess of 150 times by a common penknife in the neck, chest and torso, similar to the attack on the two teenage girls from San Jose. Close to her body in the ravine next to the road, a pair of black prescription glasses (Liberty brand frames) were discovered. Detectives have concluded they are likely connected to her death. The Zodiac Killer was extremely unlikely to have been responsible for her murder, but just like the vague clue of "Aug" on November 8th 1969 insinuating his involvement in the penknife attack on Snoozy and Furlong, was he similarly giving us the vague clue of November = 8 to suggest his involvement in another senseless penknife attack just five days earlier? Had he read about the discovery of Reet Jurvetson's murder in the newspapers - the similarities between the two crimes of which would not have gone unnoticed.   

SEVENTY ONE DAYS OF TERROR

7/12/2019

 
On October 20th 1969, nine days after the murder of Paul Stine in Presidio Heights, somebody made a threatening phone call to the Palo Alto Times newspaper saying he intended "to pick the kids off as they get on the school bus". The San Bernardino County Sun reported on the threat, stating "Patrol cars convoyed school buses around Palo Alto yesterday after a telephoned murder threat by a man claiming to be the Zodiac Killer of five persons. The weird slayer who signs himself "The Zodiac" made a similar threat in a letter to the San Francisco Chronicle last week after the Oct 11 shooting of a taxi driver. The district transportation supervisor said an armed guard might ride with each of the system's 25 buses. Officers in Napa and Vallejo, areas of the first three murderous attacks, some 45 miles north of Palo Alto, have been convoying police officers. Palo Alto Police Chief William Hydie called the new threat "extremely serious," but warned against over reaction to what might be a crank call".
PictureSaturday, December 20th 1969
On November 8th 1969, the Zodiac Killer mailed the 'Dripping Pen' card and 340 cipher to the San Francisco Chronicle claiming the "Aug" murders of Debra Gaye Furlong (14) and Kathy Ann Snoozy (15), who were found brutally stabbed on August 3rd 1969 in the Bay Area of San Jose.

On November 21st 1969
, somebody claiming to be the Zodiac Killer wrote to the San Jose Police Department​ threatening the life of a widow, accompanied by the words "There's no doubt I will do my Thing". The brief text in the letter clearly contained enough information for police to identify the woman and implement 24-hour surveillance on her residence.

On December 7th 1969, a letter was mailed from Fairfield stating "I just need help. I will kill again, so expect it any time the will be a cop".

On December 16th 1969, another letter arrived from Fairfield threatening to kill "government life" and "cops" in Sacramento, Fairfield, Napa, Vallejo, Oakland, San Francisco and San Jose. A future geographic profiling technique was applied to the locations in which he 'threatened murder' (as detailed in the Fairfield letter), and noted that "Interstate 80 begins at an interchange with U.S. Route 101 (US 101) in San Francisco, and then crosses the San Francisco–Oakland Bay Bridge into Oakland. It then heads northeast through Vallejo, Fairfield, Sacramento, and the Sierra Nevada mountains before crossing into Nevada". The idea was to identify the areas the Zodiac Killer was prepared to target, based on their accessibility to him using a main commuter route he regularly traveled. If he regularly used the I-80 for his profession, then six of these seven destinations are directly passed by the I-80, with Napa only a few miles off route.

On December 19th 1969, somebody claiming to be the Zodiac Killer again threatened cops, making a phone call to Sergeant Robert Rengsdorff of the San Jose Highway Patrol (see article above), stating "I am going to kill five of you officers and a family of five between now and Monday". This threat towards San Jose police and a family of five was issued on a Friday, exactly as was the November 21st 1969 letter, mailed to San Jose police threatening harm on a widow. After the threat on the widow was thwarted by 24-hour police surveillance on her residence, was this the response, to once again instigate fear in the San Jose community? Were the widow and 'family of five' of the same residence? We know he was threatening the lives of numerous police officers, but the threat on five members of a family appears rather specific.           

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On December 20th 1969, the Zodiac Killer mailed the 'Melvin Belli' letter containing a piece of murdered Paul Stine's shirt, effectively proving the author was the murderer of the taxicab driver on October 11th 1969. This letter mimicked the December 7th 1969 Fairfield letter by stating "please help me", which in some way helps to authenticate both Fairfield letters not released to the newspapers.

​The purpose of this article is to show the targeted areas of the Zodiac Killer (if responsible for these letters and phone calls) from the standpoint of geographic profiling. These events spanned from the October 11th 1969 murder of Paul Stine, to the mailing of the 'Melvin Belli' letter on December 20th 1969 (71 days). The areas shown in red above, highlight the locations the Zodiac Killer targeted by murder, proposed murder, as well as by his threatening phone calls and letters - and they are all connected by one direct route of travel.

During these 71 days in October, November and December the Zodiac Killer focused his attention on Sacramento, Fairfield, Vallejo, Oakland, San Francisco, Palo Alto and San Jose. Interstate 80 and U.S. Route 101 provide one seamless journey from Sacramento to San Jose. Was the Zodiac Killer a traveling salesman which took him through each of these locations - and therefore he had a familiarity with? Do these commuter route tell you anything about his home residence during this time period? 
When you commit, or intend to commit these acts, accessibility to and from a main commuter route could be invaluable.

Equidistant (as the crow flies) to Sacramento and San Jose is the waterfront city of Vallejo, believed by many to be the home residence of the Zodiac Killer. It is 53 miles from Sacramento and 57 miles from San Jose. The Springs and Tuolumne payphone, where Zodiac placed a call to police dispatcher Nancy Slover on the morning of July 5th 1969, sits 728 metres from Interstate 80.

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Click to enter Google maps

THE DRIPPING PEN CARD AND SAN JOSE CONNECTION

3/18/2019

 
Using old and new material, we will take a comprehensive look at the 'Dripping Pen' card mailed by the Zodiac Killer on November 8th 1969 and attempt to link it to a future threat of murder. The card itself was most likely chosen for purpose, referencing the immediate aftermath of the attack on Bryan Hartnell and Cecelia Shepard at Lake Berryessa on September 27th 1969. Approximately five minutes after the brutal stabbing the killer walked to the side of Bryan Hartnell's white Volkswagen Karmann Ghia and wrote "Vallejo 12-20-68, 7-4-69, Sept 27-69 -6:30 by knife". The hand the killer wrote on the car door with was likely the hand he used during the attack on the young couple, almost certainly peppering his dominant hand with blood, and consequently to the marker pen he wrote with. So the choice of greeting card stating "Sorry I haven't written, but I just washed my pen" was likely a sardonic reference to the callous and bloody attack at Lake Berryessa. The addition of "Aug" on the card inner, a suggestion of his involvement in the double murder of Deborah Furlong and Kathy Snoozy in San Jose on August 3rd 1969. This, coupled with the footnote of "by knife" written on the car door was likely deliberately engineered to steer investigators toward this conclusion. They had after all considered this premise in the October 1st 1969 edition of the San Francisco Examiner, in which was stated "And today San Jose police, to the south, inquired of law enforcement officers here whether there was indication that the "Cipher Killer" might be linked to the knife slaying of two teenage girls Aug.3, still unsolved". This wouldn't be forgotten by the Zodiac Killer.   
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Another reason to believe the 'Dripping Pen' card was referring to Lake Berryessa can be found in its design. The Zodiac Killer, almost without exception, would give us a running total of his victims, occasionally writing the victim count on the horizontal wing of the crosshairs. The only two times this was not the case, was the November 8th 1969 'Dripping Pen' card and the car door of Bryan Hartnell's white Volkswagen Karmann Ghia. In both of these writings he gave us his Zodiac crosshairs with the months of his murders underneath. This was the first and last time he would ever do this.

If you run the message from the face of the 'Dripping Pen' card to inner, it reads "Sorry I haven't written, but I just washed my pen and I can't do a thing with it". So when the Zodiac Killer wrote "I get aufully lonely when I am ignored, so lonely I could do my Thing", he was indicating that in the future when he needed some attention he would write again. His Thing being his propensity to put pen to paper, or in the case of Lake Berryessa, to metal. He was effectively addressing the police when he wrote "I though you would need a good laugh before you hear the bad news. You won't get the news for a while yet". In fact, the bad news would arrive in exactly thirteen days time - and it was directed towards the police in regards to the month of August. In effect, his next correspondence would be pushing the same narrative as the car door and greetings card, of his involvement in the deaths of Deborah Furlong and Kathy Snoozy. 

​On November 21st 1969, a letter arrived at the San Jose Police Department addressed to a particular law enforcement officer. The letter was threatening a widow - so much so - that police initiated 24-hour surveillance on the woman's home. The police stated that "they believed the widow in the message may be Mrs......" In other words, the woman wasn't directly named in the correspondence, but they had by reasonable deduction concluded who the threat was aimed at. I believe that the Zodiac Killer in his continued drive to cement the notion of his involvement in the two teenage girls murders, mailed this "bad news" to the San Jose Police Department. Can it really be a coincidence that he wrote "by knife" on the car door to plant the seed, added the "Aug" on the 'Dripping Pen' card, then mailed his next correspondence to the City of San Jose? In addition, this new communication began with some familiar words: "There's no doubt I will do my Thing".  

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On November 21st 1969, the San Jose Police Department would still have been devoting many hours to the unsolved murders of these two teenage girls, and likely receiving many tips from potential eyewitnesses and the residents of San Jose, eager to assist in the investigation. What better way for the Zodiac Killer to convince law enforcement of his potential involvement in this crime by threatening to do his Thing on one of these residents.

I have no doubt the Zodiac Killer was scouring the newspapers about this crime - so imagine he came across such a headline:
"An elderly widow, Maureen Jones, was today helping police with their investigation into the senseless murders of two young girls in San Jose, Sergeant Johnston said", or "An elderly widow, residing at Seacreek Way, was today helping police with their investigation into the senseless murders of two young girls in San Jose, Sergeant Johnston said". These article excerpts are fictitious, designed to show what Zodiac  may have read in any number of articles I have no access to. 

The Zodiac Killer never mentioned his victims by name, so it is entirely plausible that whether he knew this woman's name or not, he could, by sending a threatening letter to police using the term "widow", and addressing the communication to "Sergeant Johnston", convince police that the threat was a credible one. This may be why the police believed they knew who the woman was, despite the fact her name was never mentioned in the correspondence mailed to the San Jose Police Department. Because she had recently received newspaper coverage.     

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A small code arrived with the November 21st 1969 communication. The short code (shown above in the FBI files) was
​-- + 6 2 + --, containing two dashes either side, two pluses, and the numbers 6 and 2. The idea that anybody looking at this code could arrive at 1620 without having previous reason to suspect this four number solution, seems unlikely. But if investigators knew that "Maureen Jones" lived at a residence, such as 1620 Seacreek Way, San Jose, then they might have reason to believe this is what the code was implying. Earlier newspaper reports stated "A killer armed with a thin-bladed stiletto was hunted here today as the one who savagely stabbed to death two teenage girls yesterday as they picknicked in Almaden Valley. The scene where the bodies were found is just south of Blossom Hill Road, two blocks west of Calahan in the northern end of the valley. About 10:00 am yesterday, the girls packed a lunch and left Deborah's parents' San Jose home for a picnic atop a grassy knoll nearby. The picnic ground is a rugged area, near a narrow, serpentine trail used by motorcyclists for hill-climbing contests".  So, if we could find a 1620 residence in San Jose, possibly close to the crime scene, this may be the location of the "widow" Zodiac was targeting.

As shown above, in the October 1st 1969 San Francisco Examiner article "San Jose police, to the south, inquired of law enforcement officers here whether there was indication that the "Cipher Killer" might be linked to the knife slaying of two teenage girls Aug.3".  Therefore, would it really be that surprising if the Zodiac Killer had capitalized on their suspicions and mailed a threat to the San Jose Police Department? He knew he would be taken seriously by police - and why they were prepared to instigate 24-hour surveillance on the residence of the "widow" mentioned in the letter.
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THE "-- + 6 2 + --" SAN JOSE CODE

12/17/2018

 
THE 340 CIPHER WAS CRACKED ON DECEMBER 3RD 2020 BY DAVE ORANCHAK, SAM BLAKE AND JARL VAN EYCKE, SO THIS EARLIER ARTICLE SHOULD BE VIEWED IN RESPECT TO RECENT DEVELOPMENTS.
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Thirteen days after the Zodiac Killer mailed the 'Dripping Pen' card and 340 cipher on November 8th 1969, another letter and code purporting to be from the Bay Area murderer was mailed to the San Jose Police Department on November 21st 1969, possibly containing a threat on a "widow" in the San Jose area. Both mailings have so much in common, along with the December 7th and 16th 1969 Fairfield letters, which also contained rudimentary codes. The Zodiac Killer wrote the chronological months of his murders at the foot of the 'Dripping Pen' card: "Des, July, Aug, Sept, Oct = 7". Bearing in mind that all but August were accounted for, it is now clear the card was inferring the murders of two young girls, Deborah Gaye Furlong (14) and Kathy Ann Snoozy (15), who were found savagely stabbed on August 3rd 1969 in the Bay Area of San Jose. It is therefore no surprise that his next communication should be focused on San Jose just two weeks later. Below is part of the FBI file revealing some of its contents.

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Placing "November=8" could be viewed as an extension to his "Des, July, Aug, Sept, Oct = 7", indicating he was claiming another murder in November. He also began the communication with familiar words: "There's no doubt I will do my Thing". As the communication was mailed to the San Jose Police Department, we would now have three victims in San Jose to which he was laying claim to. The short code (shown above) was -- + 6 2 + --, containing two dashes either side, two pluses, and the numbers 6 and 2. Both Fairfield letters contained rudimentary codes pertaining to the 340 cipher, as though he was giving us a clue to its design. This may also have been the case when he mailed the Halloween card on October 27th 1970, intersecting the words Paradice and Slaves in a cross formation and writing "sorry no cipher" in similar fashion on the envelope. In fact, the December 16th 1969 Fairfield letter contained a design similar to the Halloween card. The 340 cipher can be shown to accommodate the words Paradice and Slaves, bisecting the cipher horizontally and vertically across its mid-section. This opened up the possibility that the San Jose code was somehow connected to this design. Both Fairfield letters harked back to the 340 cipher, so why not the San Jose code also.  
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The symbols contained in the San Jose code exactly mirror the order shown on the horizontal mid-section of the 340 cipher. The 10th line is where some believe the cipher could be divided, along with the possibility of the word Slaves residing. Not only do the dashes and pluses line up exactly with the San Jose code using the mid-section of the 340 cipher, but the numbers 6 and 2 would slot nicely in between. If we used basic number play, and converted 6 to F and 2 to B, both these letters can be found together on the 10th line also. All six characters from the San Jose code present on the Slaves line of the 340 cipher. 

This may very well be coincidence, but with "There's no doubt I will do my Thing", "November=8" and this correspondence immediately following the 'Dripping Pen' card and 340 cipher, one could argue the Zodiac Killer was dropping us hints to the mechanics of his "crackproof" cipher. Something he would again do with the arrival of both Fairfield letters in December.

The Zodiac Killer could wait only one month after the Button letter, to give us further clues regarding the bomb he claimed to have buried, when he wrote "P.S. The Mt. Diablo code concerns Radians + # inches along the radians". Why should the San Jose and Fairfield letters be any different?   

SAN JOSE LETTER AND CODE - 11-21-69

12/3/2018

 
PictureLighthouse Point. Click image for Google maps.
With extensive work done by AK Wilks on this topic, I would like to take a further look at the letter and code mailed to the San Jose Police Department on November 21st 1969. This came just ten days before the abduction of Elaine Davis from Walnut Creek on December 1st 1969. Her abductor traveling from the Bay Area, depositing her Navy peacoat just 26 miles south of San Jose, likely passing through it on his way to Light House Point in Santa Cruz. If the Zodiac was responsible for both letter and murder, then San Jose is a worthy avenue of interest. AK Wilks asked a pertinent question of the forum: "Does someone know of a recent murder case in San Jose that left someone a widow? Or a prominent widow who lived in San Jose in 1969? The police were seemingly able to determine who it was, so perhaps it was a well known case or person". The brief text in the letter clearly contained enough information for police to identify the woman and implement 24 hour surveillance on her residence. Was the author threatening to kill the 'widow' or abduct her from her residence?

The Zodiac Killer (or copycat) 
mailed a menacing postcard to Dr, Edward Adams in Orinda, California (near Walnut Creek) on October 12th 1970 stating "The Zodiac is going to change the way of committing murders. I shall announce when I shall commit my murders, The Adamses are Next you taught me to Mean it. ADAMS YOU ARE NEXT. ZODIAC."
As shown on the ZodiacKillerSite forum,
Dr. Edward Adams and his wife featured in the newspapers prior to this threatening communication, so it is perfectly feasible that the author of the San Jose letter and code had identified his target in the days, weeks or months prior to the November 21st 1969 correspondence. Because of the nature of the redacted text, it appears that this letter was addressed specifically to a titled officer (possibly a Sergeant or Chief) of the San Jose Police Department. Bearing in mind the target of a 'widow' mentioned in the text, the author may be referring to a newspaper article involving the death of her husband, featuring commentary by the police official the letter is addressed to. The officer's name could be any number of characters in length depending on the title he holds, with the widow's surname just 5 or 6 characters in length. 
Was the widow a prominent member of society as suggested by AK Wilks, possibly a policewoman or politician, titled like Dr. Edward Adams. On December 16th 1969 the Zodiac Killer had set his sights on a cop or "government life". 

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PictureSan Mateo Times
On the left is a December 22nd 1969 newspaper report from the San Mateo Times of somebody identifying himself as 'Zodiac' and threatening to kill five patrolmen and a family of five over the weekend, not dissimilar to his written threats in his trinity of July 31st 1969 letters: "I will cruse around all weekend killing lone people in the night then move on to kill again, until I end up with a dozen people over the weekend". 
The phone call was received on Friday December 19th 1969 by San Jose police dispatcher Shirley Searcy.

The disputed December 7th and 16th 1969 Fairfield letters (not published in the newspapers) both contained threats to murder cops for the first time, with the latter threatening to murder one policeman in San Jose. Three days later, this call to a San Jose Highway Patrol station threatening to murder police is remarkable timing. Was the caller responsible for both Fairfield letters - and more importantly - was it the Zodiac Killer?


I have searched high and low for the identity of this woman, but without a newspapers.com account to aid in the search I have failed to make any inroads. The author of the San Jose letter (if Zodiac) certainly didn't need a valid reason to target anybody, as shown by his murderous assault in the Bay Area, but the identity of the 'widow' could help to add legitimacy to both Fairfield letters mailed in December, dependent on her profession or previous relationship. The November 21st, December 7th and December 16th communications all contained short codes, the amateurish nature of which has led many to believe these three letters are the work of an impostor. But these features may actually bolster the argument for Zodiac involvement, as all three were never attempting to mimic the previously polished 408 and 340 cipher, which somebody attempting to mimic the Zodiac would surely have done.

UPDATE: THE DRIPPING PEN CARD AND SAN JOSE CONNECTION 
                 THE STORY OF SAN JOSE

THE SAN JOSE CRYPTOGRAM

3/27/2018

 
PictureButte FBI Office, Montana
On November 21st 1969 a suspected Zodiac letter was received.

The FBI file read: Re Butte tel to Bureau 11/21/69. Enclosed herewith for the FBI laboratory are two copies of the letter received by (redacted) San Jose PD, San Jose, California on this date. As noted, the message reads (redacted). The laboratory is requested to have the Cryptogram Section attempt to immediately decipher the message and furnish the results to the San Francisco Office. For the information of the Bureau and Sacramento, after a cursory analysis, officers of the San Jose, California PD, believe widow in message may be Mrs (redacted), San Jose, California. San Jose PD instituting 24 hour surveillance on Mrs (redacted).

A further page read:
11/24/69 - Copy of handprinted note beginning "There's no doubt I will do my Thing!" and ending with the symbol (drawn crosshairs). Results of examination: The ciphertext portion of Qc33 is not readable using previously recovered key. Its brevity precludes further cryptanalytic examination at this time. The furnished interpretation of  "- + 62 + -" as representing "1620" can be neither proved nor disproved analytically. The = between "November" and "8" could represent the number "2". Such interpretation would be based on inferences drawn from the date of the postmark, not from cryptanalytic examination.  (see below for FBI files).​ 

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The FBI files ponder the idea of "November" and "8" being bridged by the number 2, possibly giving us November 28th, therefore tying in with a presumed threat on a widow from San Jose. Here are some thoughts on Zodiac Killer Site forum. 
However, there may be a much simpler explanation, bearing in mind the Zodiac Killer's last two communications on November 8th and 9th of 1969. In particular the Dripping Pen card.
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The "November=8" attribution is much more likely claiming that the Zodiac (or copycat) is threatening (or has already claimed) victim number 8, sometime in November.

​The Bus Bomb letter mailed on November 9th 1969 had already claimed 7 victims, so we should be looking for a victim between November 9th and November 21st (or a potential target, such as the widow threatened, subsequent to the receipt of the letter}. A future victim in November would have to be murdered between November 21st and November 30th to comply with November=8.

The phrase "There's no doubt I will do my Thing!" seemed to suggest an impending threat - hence the urgency of 24-hour surveillance on the woman and her house. The use of the term "widow" in the FBI file may not carry a sinister connotation of a prior murder.
  
The Zodiac Killer was certainly looking for a ninth and tenth victim on December 20th 1969 when he mailed a further correspondence to Melvin Belli's residence, so one has to assume an eventual victim was found by the Zodiac Killer, if of course, he was telling the truth. Which I doubt he was.

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    The Zodiac Killer may have given us the answer almost word-for-word when he wrote PS. The Mt. Diablo Code concerns Radians & # inches along the radians. The code solution identified was Estimate: Four Radians and Five Inches To read more, click the image.
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    The Zodiac Atlas: The Zodiac Killer Enigma by Randall Scott Clemons. Click image for details.
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    The Zodiac Killer Map: Part of the Zodiac Killer Enigma by Randall Scott Clemons. Click image for color version
    For black and white issue..
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Photos used under Creative Commons from Marcin Wichary, zAppledot, vyusseem, Alex Barth, Alan Cleaver, jocelynsart, Richard Perry, taberandrew, eschipul, MrJamesAckerley