Is what I'm giving this because I think i solved it based on this show... Two killers - BOTH the top suspects here. Undeciphered ciphers are messages between killers - to knock of the faking. This is why top part of z340 is easy and rest is nothing. ONe half for copss and one for crooks. Also why the reward poster. Both were meant for HEAVY circulation. Sullivan is making a REAL LIFE remake of charlie chan movie. Can't shoot the police parts or else it would draw attention so he's using real tv. These murders were FILMED.
Review of The Hunt for the Zodiac Killer
