The Zodiac Killer is the pseudonym of an American serial killer1 who operated in Northern California from at least the late 1960s to the early 1970s. The unidentified 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. 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...

this episode is a mystery related to the greatest American president john f Kennedy who was assigned by U.S marine but no one knows why the killer was also killed after he was arrested by the police and whether it was done a person within the present members or a terrorist group. 

The case of Jack the ripper is one of the oldest unsolved murder cases and is peculiar in the sense that the assilant themself has never been identified. Dive on in to know more