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James Felton By James Felton 28 DEC 2021, 10:34 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 into the early 1970s, a serial killer going by the pseudonym "Zodiac" murdered at least five people in California. During his spree, the killer sent taunting messages to the press written through a cipher, where letters are substituted for different letters or numbers (or in the case of the Zodiac killer, a series of symbols). The first letters were sent...

A supercomputer programmed to think like the notorious Zodiac killer produced some creepy poetry when fed all the known writings of the elusive criminal, it was learned Thursday. A University of Southern California professor created an artificial intelligence software that was designed to help crack the code of the Z340, the Zodiac killer’s famous cipher. The ciphers, which were sent with letters to the police and newspapers in Northern California during the 1960s and 70s, contain letters and symbols that may hide clues as to the killer’s identity.

SACRAMENTO - A team of volunteer codebreakers has cracked a mysterious cipher sent more than 50 years ago to a newspaper by the San Francisco serial killer who called himself the Zodiac, the FBI said on Friday. The Zodiac Killer — who was never caught — shot or stabbed seven people in the San Francisco Bay Area over the course of about a year in 1968 and 1969, killing all but two of them. During his murderous spree, he sent a series of terrifying letters to the San Francisco Chronicle newspaper. Some of the notes were in code, including a...

The solution to what’s known as the 340 Cipher, one of the most vexing mysteries of the Zodiac Killer’s murderous saga, has been found by a code-breaking team from the United States, Australia and Belgium. The cipher, sent in a letter to The Chronicle in November 1969, has been puzzling authorities and amateur sleuths since it arrived 51 years ago. Investigators hoped the Zodiac, who killed five people in the Bay Area in 1968 and 1969, would reveal his name in one of his many ciphers, but there is no such name in the 340. According to code-breaking expert David...