Tahoe27 made an excellent discovery when she linked the October 27th 1970 Halloween Card to the Tim Holt comic book, showing the connection to the configuration displayed on the card in the wording By Fire, By Gun, By Rope and By Knife. However, the Zodiac Killer had likely made this connection much earlier than October 27th 1970, when he designed the December 16th 1969 Fairfield Letter (shown on the left}. In this communication he gave us a rudimentary design of the Halloween Card configuration preceded by the word "death", thereby satisfying the Tim Holt comic book of "Death By Fire, By Gun, By Rope and By Knife. Below I have shown the interconnectivity between the Halloween Card, 340 cipher and both Fairfield letters, demonstrating how the Tim Holt comic book played a part in the design of them all, with By Fire, By Gun, By Rope, By Knife, Paradice and Slaves the running theme.
This may suggest that the words are contained separately on each line, without running from one line to another. We would expect Slaves and Paradice to be grouped together - and the last two lines satisfy this character count of 6 and 8. We then have three lines remaining of 12, 7 and 5 characters. By Gun satisfies the 5 characters, By Knife satisfies the 7 characters, and By Fire, By Rope satisfies the 12 characters. This forms the basis of the completed 38 character code solution, mimicking the second Fairfield Letter design and the exact wording on the Halloween Card configuration. Furthermore, no word extends from one line to another, satisfying the non-uniformity displayed by the 38 character code. We now have By Fire, By Gun, By Rope, By Knife, Paradice and Slaves running through four communications - that of the Halloween Card, 340 cipher and both Fairfield letters. The Zodiac Killer yet again supplying us with the answer to one of his codes in subsequent communications.