In January 1969 the "Inside Detective" magazine revealed details of the Cheri Jo Bates murder and the Confession letter mailed on November 29th 1966. The young woman was found close to the Riverside City College library on Halloween Day morning (October 31st 1966) by college caretaker, Cleophus Martin.
Fast forward to October 27th 1970 and the Halloween card mailed by the Zodiac Killer, which Phil Sins believed contained characteristics of her murder and the 1966 typed letter. One of the main features of the Halloween card was the wording By Fire, By Gun, By Rope and By Knife, with the two Confession letters beginning with "The Confession" and the word "By", followed by several underscores. The Halloween card also featured the signature of "Z" for the first time, that three weeks later, on November 16th 1970, would become a pivotal argument of Paul Avery that the Zodiac Killer was claiming the murder of Cheri Jo Bates by using the letter "Z" to sign off two of the "Bates Had to Die" letters on April 30th 1967. In fact, the Halloween card communication used the letter "Z" twice, just like the 1967 letters (which had not been publicly released by October 27th 1970). This, off the back of the Little List letter on July 26th 1970, which contained the line "Some I shall tie over ant hills and watch them scream + twich and sqwirm" and appeared to borrow wording from the Confession letter. However, this falls short of producing an undeniable link between Riverside and the Zodiac Killer. We must find something from 1966 that was unreleased to the public, which the Zodiac Killer could have slipped into his Bay Area communications. The obvious place to look was the two communications following the Halloween card.
On March 13th 1971, the Zodiac Killer insinuated his involvement in either the murder of Cheri Jo Bates or the Riverside communications by writing "I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there". He followed this up with the Pines postcard on March 22nd 1971, which like the Halloween card, was personally addressed to Paul Avery. Because Paul Avery authored the newspaper article on November 16th 1970 about Riverside and the Confession letters, did the Zodiac Killer give any incontrovertible proof of his involvement in Riverside in the only communication that carried the name of Paul Avery subsequent to this date? (ie: the Pines postcard).
Fast forward to October 27th 1970 and the Halloween card mailed by the Zodiac Killer, which Phil Sins believed contained characteristics of her murder and the 1966 typed letter. One of the main features of the Halloween card was the wording By Fire, By Gun, By Rope and By Knife, with the two Confession letters beginning with "The Confession" and the word "By", followed by several underscores. The Halloween card also featured the signature of "Z" for the first time, that three weeks later, on November 16th 1970, would become a pivotal argument of Paul Avery that the Zodiac Killer was claiming the murder of Cheri Jo Bates by using the letter "Z" to sign off two of the "Bates Had to Die" letters on April 30th 1967. In fact, the Halloween card communication used the letter "Z" twice, just like the 1967 letters (which had not been publicly released by October 27th 1970). This, off the back of the Little List letter on July 26th 1970, which contained the line "Some I shall tie over ant hills and watch them scream + twich and sqwirm" and appeared to borrow wording from the Confession letter. However, this falls short of producing an undeniable link between Riverside and the Zodiac Killer. We must find something from 1966 that was unreleased to the public, which the Zodiac Killer could have slipped into his Bay Area communications. The obvious place to look was the two communications following the Halloween card.
On March 13th 1971, the Zodiac Killer insinuated his involvement in either the murder of Cheri Jo Bates or the Riverside communications by writing "I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there". He followed this up with the Pines postcard on March 22nd 1971, which like the Halloween card, was personally addressed to Paul Avery. Because Paul Avery authored the newspaper article on November 16th 1970 about Riverside and the Confession letters, did the Zodiac Killer give any incontrovertible proof of his involvement in Riverside in the only communication that carried the name of Paul Avery subsequent to this date? (ie: the Pines postcard).
The only time the Zodiac Killer used the word "attention" in his address on an envelope or postcard, was when he wrote "att. Paul averly=chronicle" on the address side of the Pines postcard. The only other time we see the word "attention" within the address of a communication linked to Zodiac, was the Confession letter envelope mailed to the Daily Enterprise in Riverside, with the wording "attn: crime". Bearing in mind that Paul Avery was instrumental in featuring the Confession letters in his newspaper article on November 16th 1970, it is noteworthy that the Zodiac Killer combined "attention" and "Paul Avery" four months later (on March 22nd 1971), when this same word was also abbreviated on the Confession letter envelope to the Daily Enterprise newspaper in 1966. It is standard practice to use the abbreviated form of "attention" (accompanied by a name) above the address on an envelope or postcard, but in both the Confession letter and Pines postcard the author abbreviates the word "attention" in the bottom left corner, under the address, Was this a further subtle clue of Zodiac's involvement in the Riverside communications? I have found no evidence thus far that the Confession letter envelope mailed to the Daily Enterprise newspaper was released to the public by March 22nd 1971. If you know better, then let me know and I will amend this article. PART TWO.
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