In 1969 a mysterious envelope was sent to three newspapers in the San Francisco area. In each envelope there were two things: a written murder confession and a cipher. These letters would kickstart the search for one of America’s most enigmatic serial killers: The Zodiac Killer.
Sources:
(n.d.). Zodiac Letters and Ciphers. Zodiac Killer. Retrieved July 20, 2024, from https://www.zodiackiller.com/Letters.html
(2023, August 8). The Zodiac Killer: A Timeline. History. Retrieved July 20, 2024, from https://www.history.com/news/the-zodiac-killer-a-timeline
(n.d). Zodiac Killer. Wikipedia. Retrieved July 20, 2024, from https://en.wikipedia.org/wiki/Zodiac_Killer#Ferrin-Zodiac_prior_relationship_theories
(2023, July 4). How the Zodiac Killer Taunted Investigators with Letters and Ciphers. Oxygen True Crime. Retrieved July 20, 2024, from https://www.oxygen.com/crime-news/the-zodiac-killer-letters-ciphers-solved#:~:text=The%20translated%20cipher%20reads%3A%20%E2%80%9CI,describes%20more%20of%20his%20motivations.
