In the late 1960s and early 1970s, a serial killer, who called himself the ZODIAC, terrorized Northern California with cold-blooded murders and a series of taunting ciphers and letters. His first set of three ciphers, considered at the time to be one, were sent to three newspapers in 1969. They were cracked by a couple within a week. On July 11, 2021, David Daniel read, where the Zodiac had stated in a letter, that the three ciphers contained his identity, but the couple and the authorities claimed that it wasn't there. David believed that the authorities had said the ciphers didn't reveal the Zodiac's identity for one reason-they couldn't find it. He knew it was there and he knew that he would find it. He looked at the first of the three ciphers-the one that the Zodiac had sent to the Vallejo Times Herald. Within three to seven seconds, he knew he had solved the nation's most notorious unsolved murder case. David studied the cipher further and looked at other ciphers that the killer had sent. One by one he cracked the ciphers and completely solved another. Within two minutes he had absolutely confirmed the secret identity of the ZODIAC killer multiple times. Law enforcement and cryptographers have been searching for his identity for over 50 years. Finally, the search is over. He has been found!