1991-The Scorpion Ciphers to John Walsh. Unknown DMV Letter (possibly Sept/Oct 1971)

Aug 2, 2024 · The notoriously difficult Z340 cipher that the Zodiac Killer sent to the San Francisco Chronicle on November 8, 1969 has finally been decoded after more than 50 years.

Apr 13, 2025 · The FBI have confirmed that a group of codebreakers have managed to crack the infamous 340 cipher used by the Zodiac Killer over 50 years ago. In the late 1960s, heading …

Dec 18, 2021 · Discover how mathematicians cracked the Zodiac Killer Z340 cipher, about half a century of relentless pursuit, and why this case remains one of the most famous unsolved …

What is the Zodiac cipher? (Definition) The Zodiac cipher is the generic name given to a series of ciphers used by a serial killer around San Francisco Bay, United States in the 1960s and 1970s.

Explore The Zodiac Killer Ciphers Definitive Guide and uncover the secrets behind each cryptic message sent by the Zodiac.

Zodiackiller.com features the most complete collection of authenticated Zodiac writings available anywhere in the world. In fact, many of the letters and envelopes below were never seen by …

Nov 30, 2023 · This wiki is an attempt to gather all useful factual and verifiable information pertaining to the ciphers associated with the "Zodiac Killer". It is also a place to post results of …

Nov 8, 2017 · Below, I give a rundown of the killer’s four codes and what progress has been made to solve them. The first cipher Zodiac created was his longest, 408 characters.

Overview of the Zodiac Killer ciphers, with background, known solutions, and links to analysis tools.