The "addition" sign in the code formed the bedrock of the code when I applied the plaintext letter "P" to it, leading to the words "help" and "appointment". Once these two words were in place, the rest of the code was relatively easy to create. The composition of the message tallied with the newspaper article, except for the phrase "trying times" which began the Z38 message. Therefore, I needed to find out why the Zodiac Killer chose this phrase. Three days after the December 7th 1969 "Fairfield" letter, anothet cryptic correspondence was mailed from Sacramento to the Sacramento Bee on December 10th 1969, dubbed the Day-by-day forecast for Cancer with the pasted newspaper text of "Zodiac". Sacramento and Fairfield are only 30 miles from one another, so I had to consider the possibility that the Zodiac Killer was operating in that area in the early part of December. Many Zodiac researchers have speculated on a Zodiac Killer writing to the "Dear Editor" section of newspapers, so I began looking for language similar to that used by the Zodiac Killer in his letters (and ciphers/codes). Or a signature possibly used by the Bay Area murderer.
The "letter to the editor" I found on December 4th 1969 in the Sacramento Bee began with "Editor of the Bee-Sir: Since the Bee does not give out the real name of letter writers who request anonymity, may I use this column to address Harding Republicans ". The "letter to the editor", three days before the Fairfield code, continued with "In these trying times of Social Security, medicare, bank insurance and workmen's compensation creeping into our way of life, we need your voice loud and clear". It was signed "concerned conservative" instead of "concerned citizen", with "Davis" underneath. The pasted Day-by-day forecast for Cancer letter with the pseudonym "Zodiac" would be mailed to the Sacramento Bee a matter of days later.. I am not saying that the "concerned conservative" was the Zodiac Killer, but the search by Zodiac researchers for characteristics of the Bay Area murderer in "letters to the editor" columns is a worthwhile approach - preferably when he gives us his real name. If these were "trying times" for the Zodiac Killer rather than the "good times" he claimed in Vallejo, then he was certainly "finding it extremely difficult to keep it in check" by December 20th 1969 when a letter arrived at the home of Melvin Belli.
ANOTHER LETTER TO THE SACRAMENTO BEE ON DECEMBER 12TH 1969 (APPARENTLY) RESPONDING TO THE "CONCERNED CONSERVATIVE"
A VIABLE SOLUTION TO THE 38 CHARACTER CODE