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A team of crypto enthusiasts announced on Friday that they successfully decrypted one of the encrypted messages sent more than 50 years ago by the “Zodiac Killer”, a serial killer who terrorized Northern California in the late 1960s and remains unidentified.
The message was sent in November 1969 to the San Francisco Chronicle by the alleged killer, and its code consisted of a series of encrypted letters and symbols.
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Detectives expected the coded message to contain the identity of the criminal, who committed at least five murders in 1968 and 1969 but claimed 37 in total and inspired other serial killers.
According to the trio of cryptographers, in the decoded message its author he brags and defies the authorities but does not provide real clues as to the motive or identity of the perpetrator.
“I hope you are having a lot of fun trying to catch me … I am not afraid of the gas chamber because it will send me to the paradice (sic) long before because now I have enough slaves working for me,” he says.
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David Oranchak, a 46-year-old American web designer, it took several computer programs and years of work to crack the complex code he began working on in 2006.
Aided by Sam Blake, an Australian mathematician, and Jarl Van Eykcke, a Belgian logistics specialist, told the San Francisco Chronicle, which confirmed the discovery with the FBI, the federal agency in charge of the investigation.
A first message sent to the California newspapers decoded a school teacher and his wife in 1969.
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“I like to kill because it is very funny,” said that text, referring again to “slaves” that it claimed to gather to serve him in the afterlife.
But the code used in the first message was much simpler than the “340 cipher”, so called because it contains 340 characters spread over 17 columns.
The 340 cipher is read diagonally, starting from the upper left corner and moving one frame down and two frames to the right.
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When the bottom is reached, the reader should go back to the opposite cornersaid the expert in a video posted on his YouTube channel.
