Some people have considered that the Zodiac Killer may have worked at the San Francisco Chronicle newspaper offices, with inside information pertaining to the investigation days or weeks before its release to the general public. The Zodiac Killer could have (and probably did) mail in excess of twenty communications before October 27th 1970, but not one single communication expressed the Zodiac pseudonym in the form of the letter "Z". This would change on October 27th 1970, when for the first time the Zodiac Killer used the letter "Z" within his Halloween card mailed to Paul Avery. This departure from the norm came just fifteen days before a San Francisco Chronicle article published by Paul Avery on November 12th 1970, which wrote that "the printing on the 'Bates Had to Die' envelopes seemed to match exactly the desk top poem writing. And perhaps the most meaningful discovery was that two of the three notes had been signed with a "Z".

​The Halloween card was mailed by the Zodiac Killer on October 27th 1970, it was addressed to Paul Avery, it referenced Halloween and it contained the letter "Z". Fifteen days later, Paul Avery is reporting on Cheri Jo Bates being found murdered on Halloween morning, with the Bates' letters signed with a letter "Z". Paul Avery's article was likely triggered by somebody (Phil Sins) noticing similarities between the Halloween card and the murder of Cheri Jo Bates, but what were the chances of somebody recognizing something in the Halloween card in respect to the murder of Cheri Jo Bates, pursuing this angle, and subsequently finding a "Z" like signature that mirrored the Halloween card? (used for the first time by Zodiac). What are the chances of Zodiac marrying Halloween and the pseudonym "Z" together, which mirrored the discovery of a murder victim on Halloween morning, which later had accompanying letters signed with a "Z" style signature? The Halloween card coming just three months after the Zodiac Killer mirrored the Cheri Jo Bates Confession letter of "She squirmed and shook as I choaked her, and her lips twiched. She let out a scream once": when he wrote in the Little List letter on July 26th 1970 "Some I shall tie over ant hills and watch them scream + twich and sqwirm".

In a time span of just three months, the Zodiac Killer had combined scream, twich, squirm, Halloween and a "Z" signature, possibly merging crucial details from the Confession and Bates letters together. Four of these details were already available in the January 1969 edition of the Inside Detective magazine, but the "Z" signature was not. If the signature on two of the Bates' letters was really meant to be the letter "Z", then the fact that the Zodiac Killer broke with tradition and used the pseudonym "Z" within a Halloween card for the first time, could be argued as carrying some significance. 

On October 21st 1969 the San Francisco Chronicle released an article entitled Fear Rides the Yellow Bus, in which Fred Sowash, the transportation director of Napa Valley Unified School District stated he had been informed that somebody claiming to be the Zodiac Killer had telephoned a threat on October 15th 1969 to kill schoolchildren in Santa Rosa by placing bombs on the buses. This meant that this person was targeting schoolchildren and school buses at least one day before the Zodiac Killer's threat to "wipe out a school bus some morning. Just shoot out the front tire + then pick off the kiddies as they come bouncing out" was released in the Los Angeles Times newspaper on October 16th 1969, and two days before San Francisco Chronicle released the details on October 17th 1969. It is virtually inconceivable that a random person pretending to be the Zodiac Killer could have foreshadowed the real Zodiac Killer and just happened to pre-empt his threat on schoolchildren by sheer luck. The phone caller to Santa Rosa threatening to target school buses with bombs came 25 days prior to the Zodiac first mentioning bombs as a method to kill schoolchildren, when he mailed the November 9th 1969 letter. The individual who rang Santa Rosa on October 15th 1969 (or slightly before) was almost certainly the Zodiac Killer. This can be backed up by a further incident on October 17th 1969.

A female school bus driver was taking schoolchildren to the Yulupa Elementary School on the morning of October 17th 1969, when she reported that sound of gunfire beside the school bus, stating "As I came around this bend I heard a loud shot from the left hand side of the bus. The children heard it too. Now I don't know if anything struck the bus. We can't find anything that struck the bus". Law enforcement, as usual, were skeptical, pointing out that there was no physical evidence that a shot was fired at the bus. The KRON news footage stated that law enforcement were expecting more reports of this kind based upon the Zodiac Killer's latest letter regarding the murder of Paul Stine. The newspaper report in the San Francisco Chronicle about the Santa Rosa bombing threat on school buses wasn't released until October 21st 1969, so a school bus driver reporting shots heard alongside her school bus in Santa Rosa four days earlier, should be considered of some significance. 

​So, if the Santa Rosa school bus shooter wasn't the Zodiac Killer, we would have to believe a random individual bought the Los Angeles Times newspaper on October 16th, read about the "picking off kiddies as they came bouncing out" of a school bus, and then decided to target Santa Rosa the following day (but pre-ermpted the location of Santa Rosa mentioned on October 21st). The female bus driver could have had no knowledge of the Zodiac Killer's phone call to Santa Rosa threatening school buses and schoolchildren on October 15th 1969, unless the specific threat was relayed to her and she was unduly influenced to report an attack that never happened. Bearing in mind (in the relevant timeframe) that this currently is the only reported shooting with respect to a school bus that we know of, it seems unusual that it should somewhat mirror the threat two days earlier in the same location. Unfortunately, law enforcement regularly dismissed things as hoaxes, as they did with the Oklahoma radio station recording of a man claiming to be the Zodiac Killer on December 7th 1969. Passing things off as hoaxes seems a tried and trusted method of doing absolutely no work. 

Another threat using bombs in Santa Rosa would again be reported in the newspapers, when somebody claiming to be the Zodiac Killer threatened a K-Mart store on two occasions on May 8th 1970, just ten days after the Zodiac Killer promised to have his "blast" when mailing the Dragon card to the San Francisco Chronicle on April 28th 1970. 

This lends greater credence to the claim by Robert Graysmith in his "Zodiac" book that "A man identifying himself as Zodiac had made a Santa Rosa Bomb threat exactly a year earlier". In other words, Graysmith claimed that on May 8th 1969 (before the Zodiac pseudonym was known) somebody had aimed another bomb threat at Santa Rosa. This possible threat encompassing Zodiac, telephoned bomb threats and Santa Rosa would come four months before the October 15th 1969 telephone call encompassing Zodiac, bombs and Santa Rosa. An October 15th 1969 telephone call to Santa Rosa threatening schoolchildren on school buses, that was made at least one day in advance of the Zodiac Killer's threat on a school bus was released to the newspapers, and therefore, not currently known to the public when the October 15th call was made.

If Graysmith was correct about somebody claiming to be the Zodiac Killer on May 8th 1969, this K-Mart bomb threat (or threat to another entity in Santa Rosa) would have come just over one month after the last major newspaper article about the Lake Herman Road murders (March 30th 1969). This Sunday Times-Herald article read "The horrifying crime may very well be the most celebrated murder mystery currently under investigation in California, and Lunblad has received aid and offers of it from a score of law enforcement agencies in the state. Those which have given him particularly large measures of support include the Vallejo Police Department, his own sheriff's department, the Benicia Police Department, the Napa and Sanoma County sheriff's departments, and the Fairfield Police Department".  All these police departments would become the focus of the Zodiac Killer's murders and threats in the following months. The county seat and largest city in Sanoma County is Santa Rosa, the focus of the K-Mart bomb threat by somebody claiming to be the Zodiac Killer on May 8th 1969. Vallejo and Napa County both saw the wrath of Zodiac when he attacked at Blue Rock Springs and Lake Berryessa, with the two Fairfield letters in December threatening the promise of further attacks. Every police department mentioned in this newspaper article as helping Sergeant Les Lunblad would receive the attention of the Zodiac Killer.       

The "Good Citizen" letter mailed on October 7th 1969 by a possible Zodiac Killer 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". The Haslett Warehouse at 680 Beach Street has been identified in recent articles as the common workplace of Robert Salem, Carl John Welz and Jerry Hatcher. However, 680 Beach Street wasn't 56 Beach Street, so more work was needed. Then it was discovered by Cragle that the Haslett Warehouse Company operated a state refrigeration terminal at pier 56 in China basin. This may have been the meaning behind the cryptic message above. The Haslett Warehouse was situated on Beach Street, San Francisco, and operated from pier 56. Cragle conjectured that the seven X's may be Haslett. 

To understand the full story, please read  Robert Salem-The Complete Story and The Spirit of Zodiac  

China Basin is a neighborhood built on landfill along the San Francisco Bay. It lies north of Mission Creek and the Mission Bay neighborhood, and includes Oracle Park, home of the San Francisco Giants, numerous restaurants, and the Caltrain railroad station. It borders on the South-of-Market (SOMA) neighborhood to the northwest and the South Beach neighborhood to the north. The term China Basin also refers to the body of water from which the neighborhood takes its name. This inlet where Mission Creek flows into the bay, home to a number of houseboats, was once an active ​industrial waterfront, though in recent decades the shore has been developed with residential condominiums.

The state refrigeration terminal at pier 56, operated by the Haslett Warehouse Co. was situated less than one mile from pier 64, where Paul Stine picked up his last paying fare on October 11th 1969. China basin is just over one mile from the intersection of Mason and Geary streets.

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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.

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. 

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   ​

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"  

​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.

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