To understand the mindset of the Zodiac Killer when composing his communications, we have to look for running themes over a period of time (such as Snoozy & Furlong) and evaluate whether his offerings were deliberately designed to mislead, or an extension of his true character. It has recently been shown that "cannibal killer" Stanley Dean Baker (and possibly an accomplice) was almost certainly responsible for the murder of Robert Salem in his 745 Stevenson Street apartment in San Francisco on April 15th 1970. However, what weight do we attribute to a Zodiac letter being connected to this murder, when it was postmarked on the morning of April 20th 1970, four months after his last communication, but dated the same day Robert Salem's murder was featured in the San Francisco Chronicle and Zodiac's pseudonym reported as being being present on his apartment wall. To achieve this, the Zodiac Killer would have had to read the morning newspaper about Salem, create his letter in a short period of time, then mail the letter for it to be processed and stamped with a morning postmark. This could have made the code contained within the letter contemporary to the murder of Robert Salem. The writing on the apartment wall stating "Satan Saves Zodiac" and the severing of Salem's left ear, led me to consider the possibility of the code reading "Skin A Satanist" or "Ate Severed Ear", which both fit seamlessly into the code. These solutions would be more relevant to Stanley Dean Baker than the Zodiac Killer, with Baker branded a "hippie satanist" by the newspapers after he admitted removing victims body parts and eating them. However, I have come to the conclusion that both of these solutions to the Z13 are extremely unlikely. But what about the rest of the letter?