While the police, the FBI, the U.S. Navy, and random civilians try to break the code of the killer’s cipher, the killer sends another letter to the press. He gives himself a name, the Zodiac, and taunts the police departments that are unable to catch him. Within a few days, a pair of teachers break the code of the Zodiac’s cipher and reveal the twisted ramblings of a killer. Meanwhile, the Zodiac prepares for his next crime.   Join Black Barrel+ for ad-free episodes and bingeable seasons: blackbarrel.supportingcast.fm/join   Apple users join Black Barrel+ for ad-free episodes, bingeable seasons and bonus episodes. Click the Black Barrel+ banner on Apple to get started with a 3-day free trial.   On YouTube, subscribe to INFAMOUS+ for ad-free episodes and bingeable seasons: hit “Join” on the Legends YouTube homepage.   For more details, please visit www.blackbarrelmedia.com. Our social media pages are: @blackbarrelmedia on Facebook and Instagram, and @bbarrelmedia on Twitter. Learn more about your ad choices. Visit megaphone.fm/adchoices