In this episode, we take a deeper dive into Zodiac's Cipher communications. Dave Oranchak joins us to provide greater insight into the ciphers. Why was the 408 cipher solved while subsequent ciphers were not? What were the differences between them all that make some harder to solve than others? Join Ferg and Morf as they tap into the wealth of knowledge that Dave brings to the subject. We also talk to Dr. Katherine Ramsland who sheds light on what it may have meant to Zodiac to write these as well as the connection to BTK. You can support the show at patreon.com/criminology An Emash Digital Production Learn more about your ad choices. Visit megaphone.fm/adchoices