After 51 years, the Zodiac Killer’s cipher has been solved by amateur codebreakers
It was a big shock, I never really thought we'd find anything because I had grown so used to failure," Oranchak, who's been working on solving the killer's messages since 2006, told CNN. “When I first started, I used to get excited when I would see some words come through — they were like false positives, phantoms. I had grown used to that. It was a long shot — we didn't even really know if there was a message," he said.The trio took their findings to the FBI a week ago, they said. The Zodiac Killer is most known for leaving a trail of five unsolved murders between 1968 and 1969. He was never caught, but he gained notoriety by writing letters to police and local media up until 1974, sometimes in code, boasting of the killings.Bloody bits of clothing were included with his letters as proof of his actions. He claims he killed as many as 37 people. The FBI said in a statement that the case remains an ongoing investigation for the bureau's San Francisco office and its local law enforcement partners."Due to the ongoing nature of the investigation, and out of respect for the victims and their families, we will not be providing further comment at this time," the statement The San Francisco Police Department has also been made aware of the solved cipher, and said the information has been sent to the department's cold case homicide investigators.
Oranchak detailed the process for cracking the cipher on his website and in a YouTube video, where he used a specifically developed decryption software and a bit of luck to finally make the connection. The team used a unique program to sift through 650,000 variations of the message. In one, a couple of words appeared."We got really lucky and found one that had part of the answer, but it wasn't obvious," Oranchak said, explaining that they then had to handpick their way through to decipher the rest of the message. The only disappointing part, Oranchak said, is that the missive contained no personally identifying information.Oranchak holds out no hope for solving the two remaining ciphers.
He described the mission as “almost hopeless," as both are very short, with thousands of different names and phrases that could fit.