Sam Blake (Australia), Jarl Van Eycke (Belgium) and David Oranchak (USA) made a breakthrough with the 240-character cipher on December 3, and finished cracking it by December 5. They have since reportedly sent the solution over to the FBI.
The coded message, known as the 340 cipher, was sent in a letter addressed to The San Francisco Chronicle in November 1969, and has puzzled authorities for more than half a century.
I hope you are having lots of fun trying to catch me. I am not afraid of the gas chamber because it will send me to paradice [sic] all the sooner because I now have enough slaves to work for me.
Oranchak, a 46-year-old Web designer from Virginia, had hoped the cipher would unveil new information about the serial killer’s identity.
However, as he remarked in the video, the message ‘doesn’t really say a whole lot’, being ‘more of the same attention-seeking junk from Zodiac’.