About this episode
A killer authors a book about his con-man past that becomes the key to solving a 29-year-old cold case of two high school sweethearts--and three other cold case murders--leading police to believe he could be the Zodiac Killer. Progressive: Multitask right now. Quote your car insurance at Progressive.com to join the over 28 million drivers who trust Progressive. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .