Throughout time mysteries have been going unresolved and puzzling minds, serial killers give the most controversial mysteries, especially cold cases in which the killers has never been identified. One of the most infamous serial killers ever known is the Zodiac, he’s been fascinating but terrifying investigators since the first victim was discovered. The Zodiac was a murderer that seemed to have a serious mental condition, which needed treating, but appears as if he could not control it. The killer originated the name "Zodiac" in a series of taunting letters sent to the local Bay Area press. These letters included four cryptograms (or ciphers). Of the four cryptograms sent, only one has been definitively solved, the rest remain a mystery.
