He would continue this theme of ridicule a month after the crime, when he mailed the November 9th 1969 'Bus Bomb' letter stating "Hey pig doesnt it rile you up to have your noze rubed in your booboos? If you cops think I'm going to take on a bus the way I stated I was, you deserve to have holes in your heads." But if that wasn't enough he would highlight how Officers Donald Fouke and Eric Zelms effectively let him through their grasp as he walked along Jackson Street only minutes after the murder: "p.s. 2 cops pulled a goof abot 3 min after I left the cab. I was walking down the hill to the park when this cop car pulled up + one of them called me over + asked if I saw anyone acting suspicious or strange in the last 5 to 10 min + I said yes there was this man who was runnig by waveing a gun & the cops peeled rubber + went around the corner as I directed them + I disappeared into the park a block + a half away never to be seen again."
Three months after the murder the San Francisco Chronicle ran an article entitled 'Yellow Cab Sets Reward for Zodiac,' offering a reward for the Zodiac Killer's capture. It read "Yellow Cab Company yesterday posted a $1000 reward for the Zodiac Killer. Specifically the money is being offered for "information leading to the arrest and conviction of the person(s) responsible" for the deaths of Yellow Cab drivers Charles Jarman and Paul Stine. The Teamsters Union, which represents Yellow Cab's drivers, is also considering offering a reward in the two cases. The subject will be discussed and voted on at a meeting of drivers set for February 8."
The Zodiac Killer was clearly emboldened by his narrow escape along Jackson Street and from the park, likely believing he was untouchable. This was clearly demonstrated by his unashamed taunting of police in the 'Bus Bomb' letter: "The police shall never catch me, because I have been too clever for them."
Five and a half months after the April 20th letter the tone was pretty much the same, when the '13 Hole' pasted postcard was mailed on October 5th 1970 to the San Francisco Chronicle. He would again mention the reward on his head and further suggest to police that they "shall never catch me."
The postcard read "There are reports city police pig cops are closeing in on me. Fk I'm crackproof. What is the price tag now?" The suggestion here, is that the killer is taking a swipe at the San Francisco Police Department, having mailed the correspondence to the Chronicle newspaper. The wording on the postcard is particularly telling, and seemingly directed at somebody in particular in the phrase "Fk I'm crackproof," in which the the killer again, is apparently unable to refrain from his love of cryptic messages. If the killer however is addressing the San Francisco Police Department, it makes perfect sense that 'Fk' would in fact be somebody connected to the SFPD also. Bearing in mind the Zodiac Killer's close call with Donald Fouke along Jackson Street, when the officer's patrol car approached him and subsequently let him on his way, it gives a new dimension to the phrase "There are reports city police pig cops are closeing in on me. Fk I'm crackproof. What is the price tag now?"
Alex Lewis (aka Welsh Chappie) came up with a plausible solution to this cryptic message which fits all the known criteria in the postcard: "There are reports city police pig cops are closeing in on me. Fouke knows I'm crackproof. What is the price tag now?" This simple solution may be the reason for the capitalized F and lower case k in the phrase. Coupled with the "price tag" in reference to the Yellow Cab Company reward of $1000, the '13 Hole' postcard mailed on the near anniversary of the Paul Stine murder, could possibly be seen in a whole new light.
After the Blue Rock Springs Park shooting of Michael Mageau and Darlene Ferrin on July 4th 1969 the Zodiac Killer mailed the August 4th 1969 'Debut of Zodiac' letter, in which he stated "The man who told police that my car was brown was a negro about 40-45 rather shabbly dressed. I was in this phone booth having some fun with the Vallejo cop when he was walking by. When I hung the phone up the damn thing began to ring & that drew his attention to me + my car." This negro male was never mentioned in the police report, and the newspapers were also apparently unaware of this vital eyewitness, as detailed in the Vallejo News Chronicle on Monday August 4th 1969: "The car's description was given to police by Mageau, not a phone call witness, as related in the letter. However, there could have been such a witness near the phone booth."
If the Zodiac Killer was telling the truth about a negro male by the payphone, how was he privy to this eyewitness speaking to police, when clearly the newspapers were not. The killer also must have been fully aware of Michael Mageau's description of his vehicle, making this statement even more curious and unnecessary. In both cases, if correct, the impression taken would be of a Zodiac Killer who had inside information beyond what the newspapers had published. This could place the murderer of five much closer to the investigation than we care to imagine. However, if the above interpretations submitted are incorrect, then "Fouke knows" just about sums it up.
A big thanks to Alex Lewis - https://welshchappie.wordpress.com/