Who Killed the Lyon Sisters? (2020) is a Documentary film that follows sisters Katherine and Sheila Lyon vanish from a Wheaton, Maryland mall in 1975, launching a 40-year search for the girls. This case was one of the largest police investigations in the history of the Washington, DC metropolitan area. Who Killed the Lyon Sisters? is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of documentary movies may also want to explore similar titles below.