He was just trying to throw them off and anyways it said Role Model insenuating him to be a Copy Cat. I dont belive this though, just a one time Murder that was poorley covered up by a Killer who used Zodiac as a scpegoat, after watching the Moive probably
[edit] Current status
The last SFPD investigators of the case were Homicide Detail Inspectors Michael N. Maloney and Kelly Carroll. They were the first to submit DNA evidence from Zodiac's letters for analysis, which resulted in a partial genetic profile. DNA testing seems to have conclusively ruled out their lead suspect, Arthur Leigh Allen,[58] and later Mike Rodelli's suspect, a prominent San Francisco businessman who lived near Paul Stine's murder scene.[59]
The SFPD marked the case "inactive" in April 2004, citing caseload pressure and resource demands.[59] They reopened the case some time before March 2007 and returned evidence to Vallejo police for additional DNA testing, where the case has remained open. [60] The Vallejo Police Department website maintains a link for providing Zodiac crime tips.[61] The case is also open in Napa County[60] and Riverside[62].
http://en.wikipedia.org/wiki/Zodiac_Kill er