How to know that you haven’t solved the Zodiac-340 cipher

Do you think you’ve solved the Zodiac 340 cipher? University of North Texas professor Ryan Garlick has written a handy guide that you should read. Once featured on the National Geographic documentary “Code Breakers“, Dr. Garlick has studied the Zodiac…

The Most Pattern-Seeking Animal of All

Much has already been written about the dubious content of the recently published book The Most Dangerous Animal of All: Searching for My Father . . . and Finding the Zodiac Killer by Gary L. Stewart and Susan Mustafa. It…

My name is… Manto Mokhenea?

Deborah Silva unearthed these articles from May 1970 issues of the Oxnard Press Courier: A woman claimed to have found the name “Manto Mokhenea” in the Zodiac’s unsolved “My name is” cipher. The name doesn’t quite fit into the cipher…

Read Gareth Penn’s “Times 17” Online

(Part 1 | Part 2 | Part 3 | Part 4 | Part 5) A generous Zodiac researcher loaned me a copy of Gareth Penn’s hard-to-find book Times 17: The Amazing Story of the Zodiac Murders in California and Massachusetts,…

Swedes crack Zodiac’s map code?

Crypto enthusiast Nick Pelling recently posted this interesting article about two Swedish engineers who developed a theory about the Zodiac’s unsolved 32-character “map code”. I agree with Nick’s assessment that the theory is ridiculously convoluted, and that it cannot possibly…