The Zodiac Killer is known to have murdered at ... their solution to the FBI and had their work confirmed. Z340's cipher alphabet consists of 63 different symbols – enough that several could ...

However, one of the most intriguing things about the Zodiac Killer was his ciphers. As per reports, the killer had mailed ciphers or encrypted messages. The Zodiac Killer had sent the cipher in ...

Code-breakers have cracked a 340-character cipher 51 years after it was purportedly sent to the San Francisco Chronicle by the so-called Zodiac Killer, the FBI has confirmed. The killer ...