Zodiac killer: engineer claims to have deciphered last two messages and discovered his real name

Faisal Ziraoui, engineer and business consultant living in the Paris region, France, claims to have decoded the last two unsolved encrypted messages from the Zodiac Killer, which during the 1960s and 1970s frightened the citizens of northern North America. California, United States. The messages called Z13 Yes Z32, by the number of characters each contains. In addition, he reveals the name of the murderer: Laurent Kaye, one of the suspects in the case.

the Zodiac Slayer he left several clues during the course of their murders, including a handful of coded messages he sent to newspapers. For years, authorities and amateur detectives failed to decipher the last of his messages unresolved figures.

“I was obsessed with him 24 hours a day, that’s all I could think of,” said Ziraoui, who learned of the Zodiac Killer case in a French magazine.

Ziraoui started to do what nobody had ever done: decipher the final codes. In 1969 and 1970, the Zodiac Killer sent four of these encrypted messages, along with letters describing their crimes. The first, sent on July 31, 1969, was resolved a week later. “I like killing people because it’s a lot of fun”, said the so-called Z408, who added: “It’s more fun than killing wild animals in the forest because man is the most dangerous animal of all”.

It was in December 2020, 51 years later, that an international team managed to decipher the second message, baptized Z340. This encryption, which was sent to The San Francisco Chronicle With the bloodstained shirt of a victim, he mocked the authorities: “Hope you have a lot of fun trying to catch me. I am not afraid of the gas chamber because it will send me to heaven long before because now I have enough slaves to work for me“wrote on Zodiac Slayer.

But despite the breakthrough, the numbers Z13 Yes Z32 remained without solution. Because these messages are so short, they are much more difficult to decipher.

That’s when Ziraoui enters the scene

Having read the case and the recent translation of Z340, Ziraoui looked at the last two messages. So he went to work. Graduated from Polytechnic university Yes HEC Paris, the best engineering and business schools in France, Ziraoui focused his problem-solving skills on coded messages.

While he was working, he suddenly wondered if he could recycle old research, since the international decryptors who had solved the Z340 had used an encryption key and made it public.

First, Ziraoui applied the key to Z32. This produced a random jumble of letters. So Ziraoui tried several different techniques to find consistency in the chaos. And after two weeks he suddenly had something: “LABOR DAY FIND 45,069 NORT 58,719 WEST”.

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In the context of Z32, this made sense, as the Zodiac Killer had sent this code on June 26, 1970, with the threat of “Disassemble a school bus”.

And when Ziraoui tracked the coordinates, based on Earth’s magnetic field, he landed somewhere not far from a school near South Lake Tahoe. Significantly, the authorities believe that Zodiac Slayer He sent a postcard in 1971 that referred to this same place.

Convinced of having deciphered the code of the Zodiac Killer, Ziraoui resorted to the most significant number of all: Z13. It begins in plain language with a convincing sentence: “My name is -“. The engineer therefore used the same encryption key with Z13. And for his greatest pleasure, he produced “KAYR”, looking like Laurent Kaye, one of the suspects, who lived near South Lake Tahoe, and who was identified by one of the serial killer’s survivors.

Skepticism about his findings

Among specialists in the case of Zodiac Slayer there are those who are not convinced of the work of decryption of Ziraoui’s codes. When he posted his findings on the serial killer forums, the moderators deleted his posts.

“I do not believe it one second.”one commentator laughed. Citing Ziraoui’s quick response time, he threw cold water on the idea that he had managed to crack the codes.

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Despite the setback on the forum, Ziraoui also posted his solutions to FBI and to San Francisco Police Department. But none commented on the accuracy of the figures decoded by Ziraoui.

Since then, Ziraoui has reassessed his method of sharing his discoveries. Grateful that you have reached the Zodiac Killer Forums “A bit like a bull in a china shop”, defends his work even if he cannot see himself solving long-term ciphers. He decided to take a step back from the Zodiac Killer: “I am drawn to things other than serial murder”, He said