There may be a slim chance that the Zodiac Killer was hinting at the murder of Cheri Jo Bates as early as November 10th 1969, rather than fourteen months later on March 13th 1971 when he claimed "riverside activity" in a letter mailed to the Los Angeles Times newspaper. If true, this would have been three weeks after Chief Kinkead of the Riverside Police Department contacted Earl Randol, Sheriff of Napa County, exploring a link between the Cheri Jo Bates and Zodiac case on October 20th 1969.

Lately I have been examining the Edward C. Adams postcard mailed from Berkeley on October 17th 1970, which stated by use of newspaper cuttings "Mon Oct 12, 1970. Edward Adams. 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".

However, this wasn't the first communication to issue a direct threat toward an individual using cuttings and similar verbiage, when somebody claiming to be the Zodiac Killer mailed "Mr. (redacted) "your next" The Zodiac" in a letter postmarked Montclair, California on November 10th 1969, which is situated approximately 19 miles (by crow) from the murder site of Cheri Jo Bates. The cuttings were attached using scotch tape onto school notebook paper, such as that carried by Cheri Jo Bates when she visited the Riverside City College library on October 30th 1966 and was spotted by a Mexican-American student shortly before 6:00pm. Writing paper similar to that used in the "Bates Had to Die" letters on April 30th 1967, which suggested "There Will Be More" victims. We have the Riverside Desktop Poem also finishing with the parting message of "just wait till next time". The Montclair and Berkeley communications both signed off with the "Zodiac" pseudonym, as did the "13-Hole" postcard on October 6th 1970.     

On July 26th 1970 in his "Little List" letter, the Zodiac Killer used wording similar to that in the "Confession" letter mailed on November 29th 1966, which was partially reproduced by the Inside Detective magazine in January 1969, featuring the murder of Cheri Jo Bates. The Confession letter read "She squirmed and shook as I chocked her, and her lips twiched. She let out a scream once and I kicked her in the head to shut her up". The Little List letter read "Some I shall tie over ant hills and watch them scream + twich and sqwirm". The Inside Detective magazine not only mentioned the "school notebook" of Cheri Jo Bates on page 5 (shown above), but the article was entitled "YOUR DAUGHTER MAY BE NEXT" by John Montgomery, loosely taken from "I lay awake nights thinking about my next victom" and "Keep your sisters, daughters and wives off the streets and alleys". 

​Did the Zodiac Killer take "YOUR" and "NEXT" directly (or indirectly) from the Inside Detective magazine in similar fashion to the "Little List" letter, which may have borrowed from this magazine also? If the threat of "your next" was using lowercase cuttings as the FBI file appears to suggest, then this would somewhat diminish the connection between the Montclair letter and magazine.  

​The FBI file made the distinction that these were magazine cuttings rather than newspaper cuttings, so if the Zodiac Killer really was the murderer of Cheri Jo Bates, then he had every reason to have focused on this magazine more than once. The connection suggested here could be construed as extremely fragile, but for the fact that this letter was mailed relatively close to Riverside (and unpublished), and offered an extremely similar threat via affixed cuttings, to that given to Edward Adams a year later. What would make this a more interesting proposition, is if the person threatened in Clarinda, Iowa could be identified by a FOIA request, and the subsequrnt male individual turned out to have some previous connection to Riverside and/or the murder investigation of Cheri Jo Bates. If this was shown to be the case, then there is a high probability that the Zodiac Killer was linking himself to Riverside far earlier than previously thought.    

UPDATE SEPT 21ST 2025: At the bottom of the Montclair FBI file the name Allen L. Donielson is mentioned. If this is not the recipient of the "Zodiac Killer" threatening letter, then there is a high probability he is somehow connected to the person that did receive it. Allen L. Donielson became the United States Attorney for the Southern District of Iowa in 1969. On November 1st 1976, the Governor of Iowa appointed him as the first judge of the newly created Iowa Court of Appeals. These and other United States Attorneys for the district have been responsible for the prosecution of some very important cases in the state. So this man was connected to Iowa where the threat was aimed. Two weeks before this threat (estimated: October 27th 1969) a similar letter bearing the same message had been mailed (from where to where is unknown).These two threats, likely towards an attorney (or more than one), began five days after the Zodiac Killer requested that either Melvin Belli or Francis Lee Bailey, two prominent and well-known attorneys, join him in a discussion on the Jim Dunbar Show on October 22nd 1969. The Zodiac Killer's appearance on the show was likely thwarted by the imposter, Eric Weill. But why (if the Zodiac Killer) would he switch his attention from San Francisco to Clarinda in Iowa within 19 days (or possibly 5 days)? I have added a newspaper article from December 23rd 1969 at the foot of this page, regarding the conclusion to a case of four draft dodgers. This was the nearest thing I could find of any relevance to Allen L. Donielson in this time period

Recently it has been shown that the Zodiac Killer fashioned the October 6th 1970 "13-Hole" and October 17th 1970 "Edward Adams" postcards by using significant parts of the "Letters to the Editor" page from the San Francisco Chronicle in each instance. The question has always been, did the Zodiac Killer know (or come across) Edward C. Adams, his wife, or any of their family members? After all, the October 17th 1970 postcard was mailed directly to Edward C. Adams at 102 Camino Don Miguel, Orinda, California, and postmarked Berkeley, just a few miles west of his home. The threat of "ADAMS YOU ARE NEXT" could be interpreted that Edward C. Adams, having recently experienced a death in the family, was next for the afterlife.

This was the route explored by excellent Zodiac researcher Mike Morford when he found and posted a newspaper article on the Zodiac Tapatalk forum earlier this year, announcing the death of Florence Wolcott on October 14th 1970, the mother-in-law of Edward C. Adams, who died three days before the "You Are Next" postcard was postmarked. Mike Morford stated that the postcard was created on October 12th 1970, but that isn't necessarily the truth, because the postcard was only fashioned from San Francisco Chronicle newspaper cuttings from that date and very probably mailed four or five days later. The Zodiac Killer could have taken cuttings from the October 12th 1970 San Francisco Chronicle newspaper at any time between October 12th and October 17th.

​Every newspaper cutting, apart from the large capitalized "YOU", can be found in the October 12th 1970 newspaper (the search function easily finds black text but not white). However, despite trawling through every page manually, I have yet been unable to locate the "YOU" on this specific date. Either I have missed it, or it may be present in the San Francisco Chronicle pages between the dates of October 12th and 17th, or another publication. If the "YOU" (on a dark background) can be found in the San Francisco Chronicle newspaper after the death of Florence Wolcott and before the time the Edward Adams postcard was mailed, it could bolster the case for this communication being a response to her death. Mike Morford speculated on whether someone knew that Edward C. Adams' mother-in-law was on "her last legs" and imminent for death, responding in this callous manner on October 17th 1970. The timing of her death just three days before the mailing date, the threat of "You Are Next", and the knowledge of Edward C. Adams' home address could suggest some familiarity with this family.

The newspaper article shown above is from the Orland Unit Register from October 15th 1970, so what is the likelihood that the Zodiac Killer came across this article? Orland is a city 110 miles northeast of Vallejo (by crow) which had a population of 2,310 in 1970, so if he was knowledgeable about the death of Florence Wolcott, isn't it more likely he got the news direct from the family, or somebody close to them?

THE EDWARD ADAMS POSTCARD WAS MAILED BY ZODIAC

If you believe that the "13-Hole" postcard was mailed by the Zodiac Killer on October 6th 1970 (which I do), it is with absolute certainty that he mailed the Edward Adams communication on October 17th 1970 from Berkeley, California. The postcard, affixed with newspaper cuttings, read "Mon Oct 12, 1970. Edward Adams. 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".

The section in blue was taken from the breaking news story about the Zodiac Killer on page 5 of the October 12th 1970 San Francisco Chronicle  The newspaper was reporting on the "13-Hole" postcard and the previously withheld "Little List​" letter mailed on July 26th 1970. The 8 words in red were all taken from a column on page 38 entitled "Question Man By O' Hara", just to the right side of the "Letters to the Editor" section. When I typed in a search for the word "taught" in the San Francisco Chronicle on October 12th 1970, it appeared only on page 38 in the "Question Man" column (shown below), followed by the other 7 words in the same column, which Zodiac used to spread haphazardly over his Edward Adams postcard. The 8 words can all be found in these two small responses to the "Question Man" below. The uppercase "M" in "Mean" can be found on the same page in the name "Abe Mellinkoff" just to the left of these responses.

​In the upside-down text of the "13-Hole" postcard, the Zodiac Killer created 17 words from the September 23rd 1970 San Francisco Chronicle "Morning Report" by Abe Mellinkoff, and one word from the column "Question Man By O' Hara". In other words, the Zodiac Killer created a total of 18 words he sourced from the "Letters to the Editor" page on September 23rd 1970, which he used on his "13-Hole" postcard, and created 8 words and the letter "M" from this very same page on October 12th 1970, which he used on his Edward Adams postcard. Therefore, Abe Mellinkoff and "Question Man By O' Hara" featured in both postcards. That's because they were designed by the same person.     

The Zodiac Killer often referred to the "Editor" in his communications, including the "13-Hole" postcard, so it isn't surprising that a large quantity of newspaper cuttings were sourced from the "Letters to the Editor" page from the San Francisco Chronicle newspaper on September 23rd 1970 and October 12th 1970. Here is the upside-down text from the "13-Hole" postcard, which read "There are reports city police pig cops are closeing in on me. Fk I'm crackproof. What is the price tag now". Everything in red can be sourced from this single article by Abe Mellinkoff on page 54 of the San Francisco Chronicle on September 23rd 1970 (shown below)..See the recent article More on the "Pace" Postcard Cuttings for a more detailed explanation.

Below are the two pages from the San Francisco Chronicle on September 23rd 1970 and October 12th 1970, that the Zodiac Killer mined heavily for his newspaper cuttings to paste onto his "13-Hole" and Edward Adams postcards. This proves without a shadow of doubt that the Zodiac Killer was responsible for both communications.  

It was easy for the Zodiac Killer to find the "Adam" (and his signature "Zodiac") he used in "Adamses" because it was present on the front page of the October 12th 1970 San Francisco Chronicle next to his own story. The "ses" was located by searching for "passes" in the multiple sports pages covering American football. The surname "Adams" was also easily found in the sports pages. The forename of "Edward" was present in a story about Edward M. Kennedy on page 8. Bearing in mind that the Zodiac Killer showed an interest in Gilbert & Sullivan's "The Mikado" and films, it would probably have been apt had he chosen the word "Next" from page 43 featuring a Gilbert & Sullivan opera by the The Lamplighters and the cinema section. It was located in the listings of Bay Area Movies in the advertisement for the Albany Cinema at 1115 Solano Avenue in Berkeley, the very location that the Edward Adams postcard was mailed from. However, because of the "N" font, it appears that "Next" was sourced from the sports pages yet again.

​The surname "ADAMS" in uppercase letters can be found on page 30, in addition to "ARE" in two car advertisements (shown below). The large "YOU" with a dark background may be from another publication, because in some images of the Edward Adams postcard it appears a different style background (see the attached image on the right to see this difference).    
​EXTRA READING: THE "PACE" POSTCARD AUTHENTIC 
FOLLOW UP ARTICLE: THE SEARCH FOR "YOU" IN PRINT 

The home of Barbara Bates Keenan was located only 3,700 feet from the residence of psychiatrist, Edward C. Adams, who received a threat upon his family from somebody claiming to be the Zodiac Killer on October 17th 1970, just six months after the murder of Barbara. The pasted communication read "Mon Oct 12, 1970. Edward Adams. 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". The renewed reference to changing the way he was going to commit his murders, allied to the proximity of the Keenan residence to the Adams home, conjured up the notion that the Zodiac Killer may have targeted the Adams family because they too were well known in fashionable society, and this may have generated more publicity for the Zodiac Killer's latest communication. The proximity of the two residences - and the strong likelihood that Mr. and Mrs. Adams knew about the murder of Barbara Bates Keenan close to their doorstep - may have invoked a heightened visceral fear in the wording of "The Adamses are Next". It is possible that the Zodiac Killer knew about the April 10th 1970 murder of Barbara Bates Keenan and used the brutal crime to magnify the relevance of his latest threat on a family, that would otherwise have seemed like a random choice, without meaning. Could the families have been known to one another and frequented the same social circles? 

Another murder occurred in Alamo, Contra Costa on April 28th 1969, just one year prior to the fatal shooting of Barbara Bates Keenan, with many parallels. Mrs. Anna S. Aarons (49) was also found murdered in her residence in another seemingly motiveless daytime attack. Dr. Z. Alexander Aarons, also a psychiatrist, discovered his wife lying on the patio of their home at about 9:30am as he was preparing to go to work. The residence of the Aarons family at 2750 Lavrock Lane was situated approximately 9 miles east of the Keenan home. Anna Aarons had been bludgeoned in the head, not dissimilar to Barbara Bates Keenan, who received injuries to the rear of her head from what was believed to be a household iron.

There is no suggestion that the Zodiac Killer had any involvement in the murder of Barbara Bates Keenan - only that he may have targeted the Orinda residence of the Adams family to create the notion that he may have been. Some Zodiac researchers have contemplated the idea that the Zodiac Killer may have read about the Adams family in a November 17th 1968 Oakland Tribune newspaper article that featured the Adamses home. The newspaper article, available on ZodiacKiller.Net, focused heavily on the design of their home and garden, referred to the family as the "Adamses", and showed an image of Mrs. Edward Adams.

Although this was featured many years earlier, in 1959, a photograph of Barbara Bates Keenan was shown in the San Francisco Examiner newspaper in the Pictorial Living section under the title of "A Hillside Home in Orinda". This article also placed the home and garden front and center of the publication, along with an an image of Barbara Bates Keenan and her dog.
The newspaper article also showed an image of her kitchen, where sadly she would be found viciously murdered just 11 years later. Hal Keenan wrote on April 10th 2014 "Thinking of my mother today. She passed away on this day in 1970, brutality murdered in our home sometime around noon. My sister and I found her when we came home from school. The photo is from May of 1959 when our house was in the Pictorial Living section of the SF Examiner. Gone but not forgotten. RIP Barbara Keenan". Closing in on the 53rd anniversary of the murder, time is not on our side in finding the perpetrator or perpetrators in the callous murder of Barbara Keenan, but hopefully one day, some answers may be found.  

Thanks to Jibberjabber for his assistance in this matter.

On October 17th 1970 there is a strong possibility that the Zodiac Killer mailed a correspondence from Berkeley to Dr. Edward C. Adams, a psychiatrist and docent (teacher), who resided at 102 Camino Don Miguel, Orinda, California. The postcard was clearly a threat towards the family, stating "Mon Oct 12, 1970. Edward Adams. 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". If this was the Zodiac Killer, why did he choose to target Dr. Adams from Orinda? The Zodiac Killer would often claim or insinuate his involvement in murders (and possible murders), such as Richard Radetich, Donna Lass, Kathie Snoozy & Debra Furlong, and Cheri Jo Bates - so what was the purpose of this communication - and what triggered it? The pasted wording of "you taught me to mean it" and "Adams you are next" would suggest the Zodiac Killer was implying he had previously crossed paths with Dr. Adams. The statement of "you are next" would have carried more weight as a threat had Dr. Adams been aware of a recent murder in close proximity to his residence - thereby adding more terror to the postcard. Could this have been a factor in the Zodiac Killer (or copycat) selecting Orinda as a destination to mail this latest communication?

About three-quarters of a mile from his residence, six months earlier, on Friday, April 10th 1970, Barbara Bates Keenan (42) was found shot dead with a .22 caliber gun in the kitchen of her 8 La Campana, Orinda home at approximately 3:45 pm by her 14-year-old daughter, Margaret. She had suffered two bullet wounds to her head and one to her back in an apparently motiveless attack. She had the cord from a steam iron wrapped around her neck, having apparently been struck on the back of the head with it also. However, it was concluded at autopsy that strangulation wasn't the cause of death. There was no signs of robbery and she had not been sexually molested. Investigators believed that the murderer knew the victim. Her husband, Oakland Insurance Executive Harold F. Keenan (45) was not a suspect in her murder.   

Newspaper reports outlined that Barbara Keenan was an elementary school student teacher in Concord before assuming substitute teacher duties last fall. She had graduated from U.C. Berkeley, where she had met her husband in 1949, and was married in 1950. Edward C. Adams attended  the University of California, Berkeley for his undergraduate work and was a docent (teacher) at the Robinson Jeffers Foundation and was a member of the San Francisco Psychoanalytic Society.

The Zodiac Killer may have targeted Diane Kennedy Pike in a letter to the San Jose Police Department on November 21st 1969 and Daniel Williams for two weeks beginning on October 23rd 1969. Diane Kennedy Pike was 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. Daniel Williams was a Salesian High School teacher in the city of Richmond, living at 1234 Bush Street in Martinez when he was threatened by a series of malicious phone calls just before the arrival of the Dripping Pen card..Both the phone caller and letter writer claimed they were the Zodiac Killer. 

I am not suggesting that the Zodiac Killer had any hand in the murder of Barbara Keenan, but as an avid newspaper consumer, had the Zodiac Killer read about the murder on April 10th 1970 in any publication and chosen to target Edward C. Adams six months later, who lived just 3,730 feet from the residence of Barbara Keenan? If Edward C. Adams was aware of the murder in his neighborhood, then the out-of-the-blue threat on him and his family stating "you are next" may have engendered a higher degree of gravitas. ​By targeting the Adamses in Orinda so close to a brutal murder just six months earlier, it's possible the Zodiac Killer was hoping that investigators may consider his involvement in the unsolved murder of Barbara Keenan. In terms of topography, both residences are heavily shrouded with trees on Google maps. Whether this was the case in 1970 I am unsure. The Zodiac Killer never outright claimed his involvement in the attacks on Richard Radetich, Donna Lass, Kathie Snoozy & Debra Furlong, and Cheri Jo Bates by name, but insinuated his participation - so it's possible - in this instance - he had hoped that the statement of "you are next" to Edward C. Adams may have pushed investigators to consider him a suspect in a recent and local previous murder - that of Barbara Bates Keenan. If Edward C. Adams and Barbara Keenan were known to each other, the threatening postcard on October 17th 1970 would have had greater significance.  

After his displeasure that the citizens of San Francisco would not wear "some nice buttons", the List Letter on July 26th 1970 continued with a future tense narrative from The Mikado's As Some Day it May Happen, proclaiming how the Zodiac Killer was set to torture his slaves in paradise, by stating "some I shall tie over ant hills and watch them scream and twich and sqwirm". Despite the Little List letter being unreleased to the public on October 5th 1970, the 13-Hole postcard continued the narrative, now proclaiming in the past tense he had effectively succeeded in torturing his slaves, claiming "Some of them fought it was horrible". It can be argued that this goes a long way to authenticating the 13-Hole postcard as a Zodiac communication. This communication, mailed on October 5th 1970, was followed by another pasted postcard from Berkeley, California on October 17th 1970, which also used cuttings to convey the message, and threatened "Adams You Are Next Zodiac".  It was addressed to Dr. Edward C. Adams, who resided at 102 Camino Don Miguel, Orinda, California. It appears that this postcard was mailed by the same individual as the 13-Hole postcard, but with the October 5th 1970 communication having already been published in the newspapers, we cannot be sure this latest postcard was not created by a copycat. An examination of the adhesive used on both communications would be highly beneficial in determining joint authorship. This determination could be crucial, because if we can prove both were authored by the Zodiac Killer, we may be able to physically place the Zodiac Killer in San Bernardino, alongside Riverside,  in 1969. We could place the Zodiac Killer mailing a letter just 19 miles from the murder site of Cheri Jo Bates.

A letter postmarked Montclair, California on November 10th 1969 and addressed to an individual in Clarinda, Iowa, carried the message "Mr. (redacted) Your Next. The Zodiac". This format was nearly identical to the Edward C. Adams postcard, again using cuttings from a newspaper or magazine. The Montclair mailing was also sent during the hub of Zodiac activity. No communications had apparently been mailed by the Zodiac Killer since the October 13th 1969 Paul Stine letter, but this inactivity was broken by the November 8th 1969 and November 9th 1969 Dripping Pen card and Bus Bomb letter, shortly followed by the Montclair mailing on November 10th 1969 from San Bernardino. If the Adams postcard was the Zodiac Killer, then how high a probability do we place on the Montclair mailing being from the Zodiac Killer, bearing in mind this was addressed to another male individual, with a near identical message, using cuttings from a publication - and more crucially - not released into the public domain when the Edward C. Adams postcard was mailed nearly one year later. If the Montclair mailing was Zodiac, we can place him extremely close to Riverside three years after the Cheri Jo Bates murder. A murder that hadn't been publicly linked to the Zodiac Killer on November 10th 1969.    

Another fascinating aspect of the Montclair, San Bernardino mailing, was that it was fashioned using school notebook paper, just like the three Bates' letters mailed in Riverside on April 30th 1967, later claimed to have been authored by an individual from San Bernardino in 2016. These too, contained an extremely succinct message. If we can link the Montclair mailing to the Adams postcard, and therefore the 13-Hole postcard, we can almost certainly place the Zodiac Killer mailing a letter close to Riverside in November 1969, placing new emphasis on the three Bates letters mailed in April 1967, and shedding further doubt on the lacklustre claims of the individual in 2016. Unless of course, he is the Zodiac Killer. which I seriously doubt as a viable option. A Freedom of Information (FOIA) request for an unredacted version of the below FBI file may unearth the identity of the individual in Clarinda, Iowa, and uncover any commonalities between him and Edward C. Adams. If this individual was a certified psychiatrist, just like Dr. Adams, it could be an extremely interesting avenue of research. And placing the Zodiac Killer mailing a letter close to Riverside at the beginning of his campaign of terror in the Bay Area, could shed a whole new light on the murder of Cheri Jo Bates in 1966 and the communications associated with the case.  

A letter on school notebook paper was mailed from Montclair, San Bernardino County, California on November 10th 1969 (one day after the Bus Bomb letter) to an individual in Clarinda, Iowa. The letter read "Mr. (redacted) your next The Zodiac". The text was created by using scotch tape to affix cuttings from a magazine. Two weeks earlier (estimated: October 27th 1969) a similar letter bearing the same message had been mailed (from where to where is unknown).

​These communications are extremely similar to a communication mailed from Berkeley, California on October 17th 1970, which also used cuttings to convey the message, was addressed to Dr. Edw. C. Adams, and threatened "Adams You Are Next Zodiac". Three weeks prior to the November 10th 1969 mailing (October 21st 1969), a note stating "You're Next - Z" was thrown from an automobile at an 8-year-old girl in Anderson Valley in Ukiah, California. A few months before the Edward C. Adams communication, somebody rang a woman, again in Ukiah, threatening "This is Zodiac - you're next".  This phraseology would be used five times from people claiming to be Zodiac (or Zodiac) from October 21st 1969 to October 17th 1970. 

San Bernardino was recently the focus of the Riverside Police Homicide Cold Case Unit, when they reported that in 2016 investigators received a communication from an individual in San Bernardino who claimed that he had authored the three Bates letters on April 30th 1967, stating he was a troubled teenager at the time he sent the trinity of malicious handwritten letters to the Riverside Police Department, Riverside Press-Enterprise newspaper and Joseph Bates. In 2020, four years after the admission in the 2016 communication, the Homicide Cold Case Unit and the FBI Los Angeles Investigative Genealogy Team submitted the stamp for additional DNA analysis and subsequent interviews were conducted. The individual linked to the DNA evidence on the (2016) stamp admitted to writing the (2016) letter and sending it to the Riverside Police Department. The Riverside Police Department further stated that "Additional information was developed regarding a separate set of letters sent to Northern California police agencies. The author claimed to be the "Zodiac Killer", but the author ultimately admitted to sending the letters to keep the investigation going". Montclair, San Bernardino is 19 miles west of Terracina Drive on the Riverside campus. The three Bates letters on April 30th 1967 were also composed using holed notebook paper, just like the November 10th 1969 communication mailed from San Bernardino. 

The communication on November 10th 1969 from Montclair (with the one mailed circa October 27th 1969), and the one mailed on October 17th 1970 from Berkeley, were both addressed to an individual person, both used cuttings from publications and both carried a near identical threat - and could very well be the same author (as all were unreleased to the public). The two communications using cuttings in October and November 1969 predated all other correspondences of this nature, including the two horoscope mailings on December 10th and 11th 1969, the 13-Hole postcard on October 5th 1970, the Berkeley mailing on October 17th 1970, the March 22nd 1971 Pines card and the July 13th 1971 Monticello card.. The horoscope mailings in December 1969 were sourced from a November edition of a magazine, so where did the author of the November 10th 1969 mailing source his material? Whether the author was the Zodiac Killer in any of the "Your Next" or "You Are Next" communications however, is open to question.  

"Edward C. Adams spent most of his life in the Bay Area where he attended the University of California Berkeley for his undergraduate work and Stanford University for his medical degree. His residency in psychiatry was received at the Menninger Clinic, Topeka, KS. During the Korean War he was an instructor in the Medical Field Service at Fort Sam Houston, San Antonio, TX. After retiring from an active practice in Psychiatry he devoted his energies to travel, fly fishing, the study of poetry and the enjoyment of his family and many friends. During the time spent at his Carmel home he volunteered as a docent at the Robinson Jeffers Foundation. He was a member of the San Francisco Psychoanalytic Society and an active supporter of many environmental groups". The November 10th 1969 communication was mailed to somebody in Clarinda, Iowa, located 121 miles (by crow) from where Edward C. Adams studied psychiatry at the Menninger Clinic in Topeka, Kansas.

Thanks to Cragle for sending me this document.

Using the words of Mike Oh from That Chapter, this old story involves a man who isn't the Zodiac Killer, but has probably more going for him than 99% of the suspects ever named. Those old coincidences just keep following this bloke around northern and southern California. He first came to the attention of the newspapers on October 21st 1969 regarding the Zodiac case, when he underwent six hours of questioning in Ukiah, California. Bruce Kenneth Swanson (30) was arrested by California Highway Patrol for speeding along Highway 101 (120 mph) just north of Ukiah, suspected of failing to pay a Ridgewood Motel bill. When his vehicle was searched they found a 14-inch knife, a bloody shirt and pair of shoes, and a woman's handbag. They also noted a resemblance to the infamous Zodiac Killer sketch (presumably from Lake Berryessa). However, after Napa law enforcement had traveled to Ukiah for a sit-down with Bruce Kenneth "Gift of the Gab" Swanson, the police allowed him on his merry way, satisfied with his explanations. Wouldn't you just loved to have been a fly on the wall in that interrogation room - but never mind - it probably went something like this: Bruce: "I was driving along the road like a maniac and hit a deer crossing the road, which I had to drag onto the verge, getting blood all over me. Fortunately, I happened to have a change of clothing with me because I was staying at the motel overnight. I bought the 14-inch kitchen knife and the woman's handbag for a female acquaintance of mine". Police Officer: "Ok, sounds reasonable, on your way lad".   

Bruce Kenneth Swanson grew up in San Bernardino County, was a 1957 graduate of Pacific High School, married his wife Barbara Ann Gaines at the Holy Rosary Catholic Church, honeymooned in Santa Barbara and then moved into 1267 Mt. View Avenue, San Bernardino. If this is the correct location. it is 7.5 miles from the Redlands home of Elizabeth Lurene Ernstein (14), who went missing on March 19th 1968, heading back home from Moore Junior High School in Mentone. The home of Bruce Kenneth Swanson was also 11.6 miles from Terracina Drive, the location of Cheri Jo Bates murder. Map.

Tragedy then struck the family of Swanson, with his wife apparently committing suicide and killing their three children. "Mother, 28, Kills 3 Children, Self UPLAND (AP) A 28-year-old woman killed herself and her three small children Saturday by carbon monoxide poisoning, police reported. Officers said Mrs. Barbara Ann Swanson ran a hose from the exhaust pipe of her car into the vehicle and then closed the windows. The children were identified as Eric Edward, 4; Elisa Marie, 3; and Keith Kenneth, 1. Mrs. Swanson's husband, Bruce, 27, earlier had filed a missing person report and was apparently out looking for her the time the deaths occurred, police said." San Bernardino County Sun, December 19th 1966: "The tragedy which destroyed the family of Bruce K. Swanson, 27, occurred after an apparent happy ride in the car by the mother and her children. A service station attendant in La-Verne told Upland police Mrs. Swanson had asked directions to the nearest hamburger stand. The children were dressed in pajamas and bathrobes, the attendant said. In answer to his request that she 'come back soon,' Mrs. Swanson said that she would. But 12 hours later, Mrs. Swanson's husband, worried and tired after an all-night search for his family, walked into a lemon grove adjacent to the yard and found the station wagon".

Much of these details can be found online, but after a bit of brain-storming and endless sleepless nights, I have managed to make potential Zodiac communications and murders follow this man around like a proverbial shadow, turning him into one of those "good old Zodiac suspects" who never was - and will never be the Bay Area murderer in a million years. Off went Bruce Kenneth Swanson from southern California to northern California sometime in the late 1960s, just in time for the Zodiac murders and communications to begin, and nestled himself in Pleasant Hill, Contra Costa County, Despite the fact he wasn't the Zodiac Killer or a murderer, coincidence would seemingly follow him around.

On December 1st 1969 Elaine Davis (17), a Pleasant Hill High School senior disappeared from her 158 Pioneer Avenue home in Walnut Creek, believed to have been forcibly removed from the residence by one or more assailants, while in the presence of her three-year-old sister, Heidi. Her glasses and her purse containing four dollars were still in the home. Her parents described Elaine as shy, with no boyfriend or relationship problems at the time of her disappearance. Her mother had driven to nearby Concord at 10:30 pm to pick up her husband from work and was out of the residence for just 45 minutes - and it is during this period of time that Elaine Davis vanished.

On December 19th 1969 the body of a young woman (in 2000, eventually identified as Elaine Davis after an exhumation) was discovered floating off Light House Point near Santa Cruz, CA. The body was decomposed with extensive damage, described as a partial torso with arm-bones and parts of the legs. Santa Cruz's deputy county coroner, Luther Young stated "We'll work on this case until we run out of leads, but right now we have nothing that would indicate any identification. I wouldn't venture to say the body is that of Elaine Davis. We have never ruled on that possibility and we have never ruled it out".

On Wednesday December 10th 1969 Leona Roberts left her job at the White Front Discount Store in Pleasant Hill (560 Contra Costa Boulevard) at approximately 5:00 pm for the eleven mile journey to her friend's apartment (Greg V. Valo) at 749 Tormey Avenue, Rodeo. This location is only 8 miles from the Lake Herman Road murder site. At about 5:50 pm a neighbor, Susan Clark, heard the sound of a girl screaming, followed by somebody running from the rear of the apartment. A suspicious male was observed many times between the front door and a blue station wagon, before he eventually drove away. The man was described as 25 years old, 5'8", short blond hair and wearing brown trousers and a jacket. A while later her boyfriend arrived home to find a disturbance inside the apartment, scuff marks near the back door and her red Volkswagen parked outside. 

Here is an excerpt from Websleuths by Steph54 "On 28 December 1969, a man searching for driftwood on the beach at Bolinas Lagoon in Marin County found the nude body of Leona Roberts. It was later determined that a unique wristwatch was missing from the girl's wrist, but a Napa High School class ring given to her by a neighbor still remained on her finger. The tan dress she wore when last seen, along with two pairs of bell-bottomed pants, a blouse, a black purse and wallet, a key chain with car and house keys were also reported missing. There were marks on the wrists and ankles indicative of binding, but the coroner was unsure whether they occurred before or after death. The cause of death was reported as "due to viral infection of an unidentified species." It was also reported that there was "evidence of choking which could probably be linked to the virus". link.

Cosette Ellison (15) disappeared from her 423 Canyon Road, Moraga residence (near Walnut Creek) on Tuesday March 3rd 1970, believed to have been forcibly taken from outside her home after getting off the school bus from Campolinda High School. She was dropped off by bus driver, Eugene Yee, at 3:20 pm, who saw her cross the road and remove some letters from the mailbox before heading along the driveway. The bus driver noticed a man sitting in a truck near the residence. On his return journey 10 minutes later, the truck had edged closer to the driveway of the Ellison household but the occupant was no longer inside. Thirty minutes later, at approximately 4:00 pm, Mr and Mrs Richard Ellison returned to an empty house. Cosette's school books were not in their usual place and no mail had been brought into the house, suggesting something untoward had happened close to the time Eugene Yee passed the Ellison residence. On January 1st 1971, nearly a year after the disappearance of Cosette Ellison, her body was found in a ravine of the Mount Diablo foothills. The residences of 423 Canyon Road and North Gate Road are extremely rural and spread, with a reduced chance of being overseen in the commission of an abduction. This may have been a consideration for the perpetrator, who likely followed school buses to a more remote setting. The risky nature of forcibly removing somebody from outside their residence necessitates a lack of eyewitnesses.

Patricia King (20) was murdered while attending Diablo Valley College, Pleasant Hill on March 5th 1970. The college layout has altered over the last 48 years, but we can pinpoint the key locations based on the wording in the newspapers. Patricia King of 2200 Lisa Lane, Pleasant Hill had attended Diablo Valley College for her gym class at 7:00 pm on Thursday evening. Her classmates informed investigators that Patricia usually only stayed for the first hour of her gym class, which is what transpired that evening, when the young woman left the building at approximately 7:50 pm. Her boyfriend was expecting her back at her home and became concerned when she didn't return by 8:15 pm.

Patricia King's body was found by a workman, Ernest Ellington, at 7:20 am the following morning in the DVC Vikings football stadium. She was wearing a black blouse and three-quarter length coat and had been strangled with her own gym tights. The newspaper reports stated "A purse (handbag) with her identification was found on the front seat of her car, in a lot adjacent to the stadium. A pair of leather sandals were on the floorboard. Her car keys were found on the Pleasant Hill campus parking lot Friday afternoon". Detective Sergeant Sam Ginsburg said "it was impossible to tell at this time if the girl knew her slayer. There was no reason for her to go into the stadium area coming to or from the parking lot to the class".

I have placed the relevant locations of these young girls in respect to Pleasant Hill in the Google map above.

Returning back to the Vallejo News Chronicle article reporting on Swanson being quizzed for six hours the morning of October 21st 1969, it stated "He had been arrested by the California Highway Patrol Monday (20th) on US 101 north of Ukiah", obviously with "squealling tires and raceing engine" so as to attract everybody to his car in Mendocino County. The following morning, after his release by Ukiah law enforcement, somebody was driving on Lake Mendocino Drive at 3:00 pm that same day (October 21st 1969) just north of Ukiah and threw a note attached to a twig at an eight-year-old girl. The crudely printed note read "You're Next - Z". A few minutes later, a man asked another eight-year-old girl in Bargain Lane what color panties she was wearing. There had also been a spate of "Zodiac sightings" in nearby Anderson Valley.   

The San Francisco Chronicle ran an article on November 8th 1969, stating "The string of sadistic calls began on October 23rd 1969 (the day after the Jim Dunbar Show call). On one occasion, the caller told Williams he had gone to a Martinez school in search of victims but had left when he found police there. Another time, the teacher said the caller, whose voice he described as muffled as if speaking through a handkerchief, said he was going to "kill the lady in the blue house". These calls began two days after the Ukiah incidents. 

Daniel Williams (24), a teacher at Salesian High School in Richmond, told police the caller talked of how he intended to kill several persons, then last; Sunday said: “You’re the dead duck.” Williams went out and when he returned home found someone had pried open the screen on a back door. However, a police search showed nothing was missing. But after the officers left and Williams took a drink from a bottle of opened soft drink in his refrigerator, he found it tasted “metallic” and immediately spat it out. Police reported Friday that the bottle contained more than enough arsenic to kill a human being. Williams said the caller identified himself as the still sought Zodiac Killer of five, but police discounted the idea. The caller would “sob and complain of headaches". Williams said, and on one occasion said he had gone to a Martinez school in search of victims but left when he found police there. Williams said the caller told him: “I’m too smart for them".

If the caller had told Daniel Williams that "he had gone to a Martinez school in search of victims", then he didn't have far to travel if he lived in Pleasant Hill. The city of  Martinez is only 6 miles to the north, with the residence of Daniel Williams at 1234 Bush Street a mere 5 miles away.

Approximately eleven months later, a pasted card, mimicking the 13-Hole Postcard was mailed to the home address of Dr. Edward C. Adams at 102 Camino Don Miguel, Orinda, California, postmarked October 17th 1970 from Berkeley. Edward C. Adams was a psychiatrist. The card read "Mon Oct 12, 1970. Edward Adams. 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". The home address of Dr. Edward C. Adams is 8 miles from Pleasant Hill.

Seven-and-a-half months later, on June 1st 1971, a woman from South Dora Road, Ukiah complained she had received a series of threatening phone calls from an adult male, one of which stated "This is Zodiac - you're next". Her residence at South Dora Road is only 4 miles from where the threatening note of "You're Next - Z" was thrown to the eight-year-old girl walking on Lake Mendocino Drive. One man is relevant to all these locations, particularly on October 21st 1969. The city of Ukiah is 115 miles from San Francisco, yet here we have two reports of similar threats with extremely similar phraseology, separated by over a year-and-a-half, when the peak of Zodiac activity had subsided.

We have taken Bruce Kenneth Swanson from the Riverside area and the murder of Cheri Jo Bates and Elizabeth Ernstein in 1966 and 1968, through the sad demise of his wife and children, into the heart of northern California and the Pleasant Hill connected murders of Elaine Davis (12/01/69), Leona Roberts (12/10/69), Cosette Ellison (03/03/70) and Patricia King (03/05/70). We have shown the Ukiah connection through two threatening messages of "You're Next - Z" and "This is Zodiac - you're next", to the ominous communication and phone call to Dr. Edward C. Adams in Orinda and Daniel Williams in Martinez. However, Bruce Kenneth Swanson is not the Zodiac Killer, or likely the murderer of any of these young women. This presentation was put together to show how easy it is to create a series of events to paint a picture of perceived involvement in murder. The reason today we have hundreds of suspects in the Zodiac case, many of which are staunchly presented as the Zodiac Killer, is perfect testimony to the frailty of techniques such as this. If these coincidence building techniques were reliable in identifying the Zodiac Killer, everybody would have reached the same conclusion as to who the Bay Area murderer was. The fact we have hundreds of Zodiac Killer's today, is evidence that this approach to case building is wholly flawed. Of course, it goes without saying, that everybody has a better case for their suspect than the one I have presented here.  

The Zodiac Killer story is full of strange coincidences, so here is another one. Alex Lewis managed to secure a redacted document from the FBI in 2016 regarding the murder of Paul Stine in Presidio Heights on October 11th 1969. The redacted document read "Xenophon Lusby Anthony, WMA, DOB 28th February 1931, Resides at 3218 Jackson Street, San Francisco. For Info Ident Division, San Francisco Police Department advised; eight year old witness in murder of cab driver identified Anthony as possible subject in this matter". Just ten days after the Paul Stine murder, on Tuesday October 21st 1969, an 8-year-old girl was walking along Lake Mendocino Drive with her parents when a passing motorist flung a note attached to a twig at her feet, stating "You're next..Z".

The Zodiac Killer had threatened schoolchildren when his October 13th 1969 letter arrived at the San Francisco Chronicle. The letter had promised that "School children make nice targets, I think I shall wipe out a school bus some morning. Just shoot out the front tire + then pick off the kiddies as they come bouncing out". The day before this note was thrown towards the young girl from the car, a newspaper article featured in the San Francisco Chronicle on October 20th 1969 entitled Bus Precautions-A Seminar Here on Zodiac Killer, mentioning protection for schoolchildren in many areas. Obviously there is no way to validate if this was the Zodiac Killer responding to this article or just another copycat buying into the Zodiac story.

There is quite a distance from San Francisco to Lake Mendocino Drive in Ukiah, but it is a direct journey along Highway 101 from the Bay Area that can be accomplished in two hours - and from the standpoint of the Zodiac Killer - likely outside the target zone of the police. The wording on the note would eventually become familiar, when a pasted card (mimicking the 13 Hole postcard) was mailed to the home address of Dr. Edward C. Adams at 102 Camino Don Miguel, Orinda, California, postmarked October 17th 1970 from Berkeley. Edward C. Adams was a psychiatrist. The card read: "Mon Oct 12, 1970. Edward Adams. 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".

This communication arrived almost one year after the note in Ukiah with very similar phraseology. The October 21st 1969 note read "You're next..Z" and the October 17th 1970 communication read "You are next. Zodiac". On August 26th 1976, an advertisement ran in the San Francisco Chronicle for one week, beginning "Zodiac, Your partner is in deep real estate. You're next". Three communications bridging a span of seven years.

The two sketches of the suspect in the Paul Stine murder were released on October 13th and October 18th 1969, so it was probably unsurprising that many people in the subsequent days believed they had spotted the Zodiac Killer. However, five residents of Anderson Valley (15 miles southwest of Lake Mendocino Drive} did make claims of seeing the "killer" in the area and reported it to police on Sunday October 19th 1969. Two days later, the incident involving the 8-year-old girl transpired. The sightings of Boonville residents in Anderson Valley were reported in the Ukiah Daily Journal on October 20th 1969.

Bus patrols were widespread after the Zodiac threat on schoolchildren, with newspaper reports detailing the vigilance of authorities as far as the Napa Valley and Santa Rosa. Had the Zodiac Killer ventured just beyond the perceived safety net to fulfil his promise to target schoolchildren, or was this just another sick individual cashing in on the terror experienced in the Bay Area and beyond? 

Captain Hays Hickey of the California Highway Patrol had met with authorities on October 20th 1969 to finalize plans for a CHP-Sheriff's Unit Protection on half a dozen or more school buses in the outlying districts of Mendocino County in the wake of Zodiac's threats. Operation Zodiac initially began with three outlying areas covered on October 20th 1969, believing the killer was more likely to threaten areas of a more rural nature.  

A pasted card, mimicking the 13 Hole Postcard was mailed to the home address of Dr. Edward C. Adams at 102 Camino Don Miguel, Orinda, California, postmarked October 17th 1970 from Berkeley. Edward C. Adams was a psychiatrist. The card read

"Mon Oct 12, 1970. Edward Adams. 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".

The Gladman Hospital where Richard H. Adler worked is today listed as a Psychiatric Health Facility in Oakland. Telecare was founded by psychiatrist, Art Gladman in 1965. The Gladman Hospital was a traditional psychiatric hospital back in 1976,  extremely interesting and noteworthy, bearing in mind the FBI file concerning the Edward C. Adams Letter (shown below), which indicates Dr. Adams informed Inspector David Toschi of his belief that the threatening letter he received was sent by a former psychiatric patient who resided in Berkeley. The city of Berkeley lies on the east shore of San Francisco Bay in northern Alameda County, adjacent to Oakland.

"Edward C. Adams spent most of his life in the Bay Area where he attended the University of California Berkeley for his undergraduate work and Stanford University for his medical degree. His residency in psychiatry was received at the Menninger Clinic, Topeka, KS. During the Korean War he was an instructor in the Medical Field Service at Fort Sam Houston, San Antonio, TX. After retiring from an active practice in Psychiatry he devoted his energies to travel, fly fishing, the study of poetry and the enjoyment of his family and many friends. During the time spent at his Carmel home he volunteered as a docent at the Robinson Jeffers Foundation. He was a member of the San Francisco Psychoanalytic Society and an active supporter of many environmental groups".  SFGATE.COM.

The San Francisco Center for Psychoanalysis was organized in 2007, combining the San Francisco Psychoanalytic Institute & Society, founded in 1941, with the San Francisco Foundation for Psychoanalysis, founded in 1991. The Center provides an extensive training program in psychoanalysis. The Center also sponsors a large, vibrant Extension Division which offers classes and seminars to mental health professionals as well as to the general public. The San Francisco Psychoanalytic Society and Institute is a facility for psychoanalytic research, training, and education located on 2420 Sutter Street in San Francisco, California. It is situated in Lower Pacific Heights, approximately one mile from the intersection of Washington and Cherry.

It can be seen on the map below that Gladman Hospital (Mental Health Rehab) is only 6.5 miles from Orinda, 6.3 miles from Berkeley and 12 miles from 2420 Sutter Street. In summary, we have two communications sent six years apart, containing the phrases "You are next" and "You're next", both likely to psychiatrists, who lived and worked in close proximity to one another, and who both were addressed by the name "Zodiac" in the message. And one had the initials R.A. 

Edward C. Adams and Richard H. Alder may have crossed paths in their profession of psychiatry, either at the San Francisco Foundation for Psychoanalysis or their places of work, and the personal ad stating "Your partner is in deep real estate" may have been referencing Edward C. Adams as a man in deep trouble, using the word partner as "business partner", or in a more loose term, as a "partner in the same profession". Bearing in mind the almost identical threat six years earlier to somebody in the same profession, this seems a distinct possibility.

In a previous article we showed with a high degree of probability that the 13 Hole Postcard mailed on October 5th 1970 was connected to the as yet unpublished Little List Letter through its wording, and therefore both were authored by the Zodiac Killer. Most people accept that the Little List Letter is authenticated Zodiac correspondence, so by extension, if the October 17th 1970 Edward C. Adams Letter and "Deep Real Estate" Letter were authored by the same person, and we can connect the two pasted letters in October 1970, then we can verify Zodiac was responsible for all. This would mean that Edward C. Adams suspicions that the letter mailed to his home address in Orinda by a former psychiatric patient who resided in Berkeley, could have been the Zodiac Killer.        

On the flip side, Richard H. Adler may have been addressing Zodiac, or somebody claiming to be the Zodiac Killer.

A pasted card mimicking the '13 Hole' postcard was mailed to the home address of Dr. Edward C. Adams at 102 Camino Don Miguel, Orinda, California, postmarked October 17th 1970 from Berkeley. Edward C. Adams was a psychiatrist. The card read "Mon Oct 12, 1970. Edward Adams. 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".

Fast forward to July 8th 1974, when another suspected Zodiac correspondence was mailed to Marc Henry Spinelli of the San Francisco Chronicle. He was better known as Count Marco, running an advice column in the paper for 15 years. The only time Zodiac addressed the columnist was in respect to a topic on psychiatrists and psychologists, which featured only five days prior to the July 8th 1974 'Red Phantom' letter. The column, dated July 3rd 1974, began with "When I wrote that psychiatrists and psychologists ruined more marriages than they saved, I wasn't surprised by the angry reaction. I had contended that shrinks look at ordinary marriage problems as "cases," to be dissected, rearranged and deranged, leaving the "patient" totally disoriented. What would happen if a physician examined a patient and said, "You have such and such a disease. Now do something about it," without prescribing treatment. Mother Nature is like an oyster. She heals emotional wounds through passage of time. An oyster finds a grain of sand has forced its way into the shell. As time goes on its mucous continually covers the irritant until eventually what was a sore spot becomes a magnificent pearl. However, if one instead took a sharp instrument and sliced the pearl in half, the only result would be to expose the original grain of sand, the irritant. According to a report in The Chronicle, behavioral researchers have shown unmistakably that psychiatry is a very imprecise tool in diagnosing mental illness".
    
This clearly prompted a response from the author of the 'Red Phantom' letter, who wrote "Editor - Put Marco back in the hell-hole from whence it came - he has a serious psychological disorder - always needs to feel superior. I suggest you refer him to a shrink. Meanwhile, cancel the Count Marco column. Since the Count can write anonymously, so can I - the Red Phantom (red with rage)". Many people have attempted to analyze the Zodiac Killer from a psychological perspective, so is it possible the Zodiac Killer used his knowledge of this subject to play a game with his 'audience', throwing them red herrings throughout his communications? Directing the audience down a path he chose for them.

​"Edward C. Adams spent most of his life in the Bay Area where he attended the University of California Berkeley for his undergraduate work and Stanford University for his medical degree. His residency in psychiatry was received at the Menninger Clinic, Topeka, KS. During the Korean War he was an instructor in the Medical Field Service at Fort Sam Houston, San Antonio, TX. After retiring from an active practice in Psychiatry he devoted his energies to travel, fly fishing, the study of poetry and the enjoyment of his family and many friends. During the time spent at his Carmel home he volunteered as a docent at the Robinson Jeffers Foundation. He was a member of the San Francisco Psychoanalytic Society and an active supporter of many environmental groups".  SFGATE.COM.

One of the addresses for Marc H. Spinelli was 747 Geary Street, San Francisco, the location often associated with where taxicab driver Paul Stine picked up the Zodiac Killer on October 11th 1969. He would be murdered a short time later at the intersection of Washington and Cherry Streets. How well the Zodiac Killer knew this area is subjective, but he may have chosen this area because he was familiar with the surroundings - crucial when planning an escape route from a murder. Had the Zodiac Killer worked or trained, somewhere in or close to Presidio Heights.  

In the FBI document on the right, it is clear that Inspector David Toschi of homicide detail believed the 'You Are Next' card may have been mailed to Edward C. Adams by a former patient of his. However, if the card was mailed by the Zodiac Killer, what connections could he have to Edward C. Adams, his profession, or Orinda, California? 

The crucial phrase in the card is "you taught me to mean it". You don't teach patients, you diagnose them. What if the Zodiac Killer trained as a psychologist, or went to one of Edward C. Adams' seminars or lectures? He could easily have picked up some useful 'psychological advice', used to convince his audience in the guise of the Zodiac Killer - conveying his threats with menace and meaning. In other words, Edward C. Adams "taught him to mean it" under the Zodiac umbrella.

Dr. Edward C. Adams was a member of the San Francisco Psychoanalytic Institute & Society. "The San Francisco Center for Psychoanalysis was organized in 2007, combining the San Francisco Psychoanalytic Institute & Society, founded in 1941, with the San Francisco Foundation for Psychoanalysis, founded in 1991. The Center provides an extensive training program in psychoanalysis. The Center also sponsors a large, vibrant Extension Division which offers classes and seminars to mental health professionals as well as to the general public." link.​ Was the Zodiac Killer sitting in the audience taking a lesson from Edward C. Adams in how "to mean it"? The San Francisco Psychoanalytic Society and Institute is a facility for psychoanalytic research, training, and education located on 2420 Sutter St. in San Francisco, California. It is situated in Lower Pacific Heights, approximately one mile from the intersection of Washington and Cherry.