Forty-three years ago today, the Zodiac mailed one of his most baffling clues and inspired one the most persistent myths in the history of the case. Read the ZodiacKillerFACTS article THE RADIAN THEORY: Mistakes in the Myth-Making and learn how to debunk this myth using a map, a protractor and the facts.

San Francisco’s Old Mint recently hosted a special screening of the 2007 film ZODIAC. Inspector Pamela Hofsass attended the screening and reportedly told the audience that the SFPD has obtained a partial profile of Zodiac DNA. The SFPD had previously reported the same news more than a decade ago but the latest rumors indicate that investigators are still working to obtain new evidence which could finally solve the Zodiac mystery. Read the ZodiacKillerFacts blog entry ZODIAC DNA: A Question of Answers or visit the ZodiacKillerFacts Forum to discuss this and other case-related issues.