Join me for a deep dive into the Zodiac Killer's first mysterious cipher, as told through a combination of newspaper articles, police reports, FBI documents and books. Learn about Zodiac's crimes, his taunting letters, the mysterious cryptogram he sent to local newspapers, all the efforts to solve it, the breakthrough solution by the Hardens, the involvement of a prominent cryptographer, evidence and leads revealed in the police reports, cipher analysis by the FBI, unanswered questions, and much more!
