19-year-old Cheryl Scherer vanished from a Missouri gas station on April 17, 1979, and hasn't been seen in nearly 50 years. Josh Mankiewicz investigates this cold case from the pre-digital era when disappearances left few traces, hoping listeners might hold the key to solving it. Cheryl Scherer, 19, disappeared from a Rhodes Pump-Ur-Own gas station in Scott City, Missouri on April 17, 1979, and has been missing for nearly 50 years.