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In 1969, a serial killer terrorized Northern California with a very public yet covert persona. The Zodiac Killer murdered five people, though some called his methods “boring,” and rumors spin that number into more alarming figures such as 49.
Notably, he even threatened the media that he would keep killing if they didn’t publish his correspondences.
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 three parts to three local newspapers with a handwritten letter attached that confirmed his identity.
Donald and Bettye Harden, a puzzle-loving couple, deciphered the first encrypted message within days of its publication on August 1, …