Remains unidentified, with his killings unsolved.
The Zodiac Killer is an unidentified serial killer who operated in Northern California in the late 1960s. The case is one of the most famous unsolved murder cases in American history and has become a focus for efforts by amateur detectives.
The Zodiac murdered five known victims in the San Francisco Bay Area between December 1968 and October 1969, targeting young couples and a lone male cab driver. His attacks took place in various locations including Benicia, Vallejo, Napa County, and San Francisco. The Zodiac claimed to have murdered thirty-seven victims and has been linked to several cold cases.
The Zodiac’s name comes from a series of taunting messages sent to regional newspapers, containing cryptograms or ciphers, some of which remain unsolved. The only suspect publicly named by authorities was Arthur Leigh Allen, a former elementary school teacher and convicted sex offender, who died in 1992. However, many theories regarding the identity of the killer have been suggested.
The case led to international interest and remains open in several counties and cities in California, as well as with the California Department of Justice. Despite extensive investigations, the Zodiac Killer’s identity remains unknown.

Movies About the Zodiac Killer
Books About The Zodiac Killer

- Brenda Haugen (2010), The Zodiac Killer: Terror and Mystery,
- Michael D. Kelleher; David Van Nuys (2002), “This is the Zodiac speaking”: into the mind of a serial killer,
- Gareth Penn (1987), Times 17: the amazing story of the Zodiac murders in California and Massachusetts, 1966–1981,
- William T. Rasmussen (2006), Corroborating Evidence II,
- Ronald J. Dayton (2018), Zodiac 340 Cipher
- Michael H. Stone, M.D. & Gary Brucato, Ph.D., The New Evil: Understanding the Emergence of Modern Violent Crime.
5 Facts About The Zodiac Killer
- Cryptic Communication: The Zodiac Killer is infamous for sending a series of taunting letters and cryptograms to local Bay Area newspapers. These communications often included ciphers, some of which have never been fully decoded, adding a layer of mystery and fear to his crimes.
- Unidentified Despite Investigations: Despite extensive investigations and numerous suspects, the true identity of the Zodiac Killer remains unknown. This enduring mystery has made the case one of the most famous unsolved serial murder cases in history.
- Murder Spree Timeline: The Zodiac Killer’s confirmed attacks occurred between the late 1960s and early 1970s. The first confirmed murders attributed to the Zodiac occurred on December 20, 1968, with the shooting of high school students Betty Lou Jensen and David Faraday.
- Victim Selection and Method: The Zodiac Killer targeted young couples in secluded areas and also attacked a lone taxi driver, demonstrating a varied victim profile and methodology. His known attacks involved shootings and stabbings, showcasing a brutal and unpredictable nature.
- Influence on Popular Culture: The Zodiac Killer has had a significant impact on popular culture, inspiring numerous books, documentaries, movies, and television shows. The mystery and terror surrounding his crimes continue to fascinate and horrify people around the world.
Quotes from The Zodiac Killer
- “This is the Zodiac speaking.”
- “I like killing people because it is so much fun.”
- “I will not give you my name because you will try to slow down or stop my collecting of slaves for my afterlife.”
- “I am the murderer of the taxi driver over by Washington St. and Maple St. last night.”
- “I am crack proof.”
- “If you do not print this cipher, I will go on a kill rampage Friday night.”
- “The police shall never catch me, because I have been too clever for them.”
- “I shot a man sitting in a parked car with a .38.”
- “I enjoy needling the blue pigs.”
- “My name is ____,” followed by a 13-character cipher.
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