Zodiac killer unidentified american serial killer who is believed to have murdered six people primarily in northern california between 1966 and 1969.

Zodiac killer kills. The zodiac killer targeted young couples along with a male cab driver and delighted in taunting police and media sending letters and puzzles about his unsolved cases. 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. These letters included four cryptograms or ciphers. The infamous bay area zodiac killer who killed at least five people and potentially as many as 37 in the late 1960s and early 1970s has never been definitively identified full text of 340 cipher.

The killer originated the name in a series of taunting letters and cards sent to the san francisco bay area press. While officially connected to five murders and two attempted murders the zodiac hinted he had killed at least 37 victims.

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