Greatest Unsolved Mysteries Of The World
Monday, Aug 24, 2020, 1:28 pm
By:
Tony Williams
#7 Zodiac Letters
The Zodiac Killer was notorious for sending cryptic letters to the San Francisco police and to the press from the 1960's to the 1970's. In that time period he murdered four men and three women aged sixteen to twenty nine years old. The letters contained four cryptograms, only one of which was solved.
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