Has the Zodiac code been solved?
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.
It took 51 years to crack, but one of the taunting messages written in code and attributed to the Zodiac Killer has been solved, according to the F.B.I. The mysterious 340-character cipher, which was mailed to The San Francisco Chronicle in November 1969, does not reveal the killer's identity.
The first, sent on July 31, 1969, was cracked just a week later. “I like killing people because it is so much fun,” the cipher, called Z408, read. “It is more fun than killing wild game in the forest because man is the most dangerous animal of all.”
Zodiac was both referencing and acting out Hitchcock story elements. On August 8, 1969, Donald and Bettye Harden of Salinas, California cracked the 408-symbol cryptogram. It contained a misspelled message in which the killer seemed to reference "The Most Dangerous Game".
The Case Breakers identified a now-dead man as the likely Zodiac, citing supposed matching facial scars among photos of their suspect and sketches of the Zodiac. The team, which counts retired law enforcement officers and forensic experts among its members, named Gary Francis Poste as the Zodiac suspect.
The killer's hallmark was a series of four ciphers, using letters of the alphabet and symbols, that he sent to media outlets from July 1969 to April 1970 with warnings, and tantalizingly, a promise of his identity.
According to Oranchak, the cipher attributed to the killer says, "I hope you are having lots of fun in trying to catch me. ... I am not afraid of the gas chamber because it will send me to paradise all the sooner because I now have enough slaves to work for me."
How was the Zodiac Killer 'identified'? Gary Francis Poste is the Zodiac Killer, according to the Case Breakers - a group of more than 40 former police investigators, journalists and military intelligence officers.
A week after the letters were sent, a couple in Salinas, California, cracked the cipher. The Zodiac Killer, the plaintext revealed, said he was collecting slaves for the afterlife and that he wouldn't disclose his identity because doing so would interfere with those plans.
He finally named himself the “Zodiac Killer”, using it as a signature from the letters sent to the San Francisco papers and police. He enjoyed taunting the police through his letters, and even would call after committing the crimes to let them know where to find the bodies.
When did Zodiac Killer stop?
Zodiac killer, unidentified American serial killer who is believed to have murdered at least five people in northern California between 1968 and 1969. An earlier murder, the stabbing death of an 18-year-old college student in Riverside, California in 1966, is also sometimes attributed to the Zodiac killer.
The deciphered message reads as: "I hope you are having lots of fun in trying to catch me. That wasn't me on the TV show which brings up a point about me. I am not afraid of the gas chamber because it will send me to paradice (paradise misspelled) all the sooner.”

Arthur Leigh Allen WASN'T The Zodiac Killer
Some events may have been slightly exaggerated for the sake of the movie, but ultimately the events of Zodiac went down the same way they did in real life. Arthur Leigh Allen was a prime suspect for years with heavy circumstantial evidence against him.
The Zodiac Killer terrorized the San Francisco area in the late 1960s and has never been caught.
The Zodiac Killer, who was never caught, gained notoriety by writing letters to police and local media boasting of the killings up until 1974. Claiming to have killed as many as 37 people, he also wrote some letters in code and included bloody bits of clothing to use as proof of the acts.
However, the only man ever named as a suspect was Arthur Leigh Allen of Vallejo, California, who died in 1992. In response to the Case Breakers theory which names Gary Poste, the San Francisco office of the FBI said in a statement to the San Francisco Chronicle on Wednesday: "The Zodiac killer case remains open.
Forensic scientists say they have finally fingered the identity of Jack the Ripper, the notorious serial killer who terrorized the streets of London more than a century ago. Genetic tests published this week point to Aaron Kosminski, a 23-year-old Polish barber and a prime police suspect at the time.
The “Z-340” message — coined that as it contained 340 characters, a mix of letters and symbols — was first sent to the San Francisco Chronicle in November 1969, amid of string of ciphers, threatening letters and evidence (swatches of a victim's shirt) that the Zodiac Killer sent to the newspaper.
What did the first Zodiac letter say?
The first, one long cipher sent in pieces to The Chronicle, San Francisco Examiner and Vallejo Times-Herald papers in 1969, was solved by a Salinas schoolteacher and his wife. It said little beyond: “I like killing because it is so much fun.”
Cryptographic researchers have finally cracked a 51-year-old code left by the Zodiac, a serial killer who terrorized Northern California in the late 1960s and early 1970s. Much of the work of cracking the code was done in Mathematica, the statistics package from Wolfram.
The FBI estimates that there are between 25 and 50 active serial killers in the United States at any given time, and many of them have never been caught.
He lived in Groveland, Tuolumne County, California.
A week after the letters were sent, a couple in Salinas, California, cracked the cipher. The Zodiac Killer, the plaintext revealed, said he was collecting slaves for the afterlife and that he wouldn't disclose his identity because doing so would interfere with those plans.
How was the Zodiac Killer 'identified'? Gary Francis Poste is the Zodiac Killer, according to the Case Breakers - a group of more than 40 former police investigators, journalists and military intelligence officers.
According to code breaker David Oranchak, the cipher attributed to the killer says, "I hope you are having lots of fun in trying to catch me. ... I am not afraid of the gas chamber because it will send me to paradise all the sooner because I now have enough slaves to work for me."
Arthur Leigh Allen WASN'T The Zodiac Killer
Some events may have been slightly exaggerated for the sake of the movie, but ultimately the events of Zodiac went down the same way they did in real life. Arthur Leigh Allen was a prime suspect for years with heavy circumstantial evidence against him.
The Zodiac killer was originally known as the “killer,” he later, after purchasing a Zodiac watch, began using the name and symbol as his calling card.
Why is Zodiac Killer called Zodiac?
The killer sent taunting letters and cryptograms to police and newspapers. He was dubbed the Zodiac killer because some of his cryptograms included astrological symbols and references.
Cryptographic researchers have finally cracked a 51-year-old code left by the Zodiac, a serial killer who terrorized Northern California in the late 1960s and early 1970s. Much of the work of cracking the code was done in Mathematica, the statistics package from Wolfram.
Zodiac killer, unidentified American serial killer who is believed to have murdered at least five people in northern California between 1968 and 1969. An earlier murder, the stabbing death of an 18-year-old college student in Riverside, California in 1966, is also sometimes attributed to the Zodiac killer.
Colbert's team believes Poste is the Zodiac because of his physical similarity to a 1969 police sketch of the killer, both featuring forehead scars, and anagrams sent to the San Francisco Chronicle that purportedly revealed Poste's name.
On August 23, 2018, he died in Groveland from sepsis, septic shock, dysphagia and vascular dementia. He died at the age of 80. His remains were scattered in the Sierra Mountains.
A group of unofficial investigators made headlines Wednesday when they announced their theory that a now-deceased Groveland house painter named Gary Francis Poste was the infamous Zodiac Killer, known for a string of unsolved murders in the San Francisco Bay Area from 1968 to 1969 that has kept detectives and armchair ...
The Zodiac terrorized communities across Northern California in the late 1960s. The killer has been connected to five killings but claimed to have murdered 37 victims. The first of the confirmed Zodiac slayings occurred in December 1968 when a man and woman were shot dead in a car in Benicia, California.