In the 1960’s and early 1970’s, the infamous Zodiac Killer terrorized the California Bay Area and mesmerized the rest of the country with a haunting string of unsolved murders and violent attacks. With seven confirmed victims, including five brutal fatalities, the Zodiac eluded police for years, taunting them with bizarre ciphers and threatening letters. Authorities challenged the Zodiac to create another of his famous cryptograms and reveal his identity.
With his outrageous ego at stake, the killer responded by sending them the 340 Cipher… which was never solved. But now, 47 years later, in his book Zodiac Code: Solved! author Michael D. Sechrest – with the historical advantage of all the killers’ enigmatic correspondence, taunting clues, and cryptic lyrics from Gilbert and Sullivan – has finally cracked the 340 Cipher. The Zodiac killer’s TRUE IDENTITY is exposed at last in his own confession!
Michael D. Sechrest is so certain of the solution, he is offering a $10,000 challenge to the first reader to submit a more viable homophonic substitution key.