The statement at the bottom of the Bus Bomb Letter reads "To prove that I am the Zodiac, ask the Vallejo cop about my electric gun sight which I used to start my collecting of slaves."
The Vallejo Cop he is referring to is Jack E Stiltz, a Vallejo police chief.
http://www.zodiacciphers.com/zodiac-news/january-09th-2016
Yes, I believe it was in response to those articles.
“…they may be dealing with one or more ersatz Zodiacs–other psychotics eager to get into the act, or perhaps even other murderers eager to lay their crimes at the real Zodiac’s doorstep.“ L.A. Times, 1969
Yes, I believe it was in response to those articles.
Yes definitely and the statement "To prove that I am the Zodiac, ask the Vallejo cop about my electric gun sight which I used to start my collecting of slaves." was thought to be an interaction of some kind, as opposed to the Zodiac simply referencing his response to Jack Stiltz in the Debut Letter.
