Ett av Zodiacmördarens brev avkodat efter 51 år

The Zodiac Killer (or simply Zodiac or the Zodiac) is the pseudonym of an American serial killer who operated in Northern California from at least the late 1960s to the early 1970s. His identity remains unknown. The killer originated the name in a series of taunting letters and cards sent to the San Francisco Bay Area press. These letters included four cryptograms (or ciphers). The Zodiac murdered five known victims in Benicia, Vallejo, Napa County, and San Francisco, respectively, between December 1968 and October 1969. He targeted young couples, with two of the men surviving attempted murder. He also murdered a male cab driver. The Zodiac himself once claimed to have murdered 37 victims. The San Francisco Police Department (SFPD) marked the case "inactive" in April 2004, but re-opened it at some point prior to March 2007. The case also remains open in the city of Vallejo, as well as in Napa County and Solano County. The California Department of Justice has maintained an open case file on the Zodiac murders since 1969.