See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

The last people to see Sheila and Katherine Lyon in March 1975 paint a vivid picture of the young sisters’ final hours before they vanished during a visit to the Wheaton Plaza shopping mall.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

After years of frustration, investigators named a person of interest in the Lyon sisters’ disappearance – an accused serial killer who had moved to Montgomery County soon before Sheila and Katherine disappeared, and who left after another young woman was brutally attacked.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Almost 40 years after Sheila and Katherine Lyon disappeared, a man was indicted for their murders. The indictment showed how close police had been to catching the suspect and the crucial mistakes that let him remain free for decades.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Lloyd Lee Welch will go on trial in September 2017 for the murders of Sheila and Katherine Lyon although their bodies have never been found. Investigators finally believe they know what happened to the young sisters who vanished almost 40 years ago.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

More than 42 years after Sheila and Katherine Lyon vanished from Wheaton Plaza, Lloyd Lee Welch was set to go on trial for their murders in remote Bedford, Virginia. Would the Lyon family finally get the answers and justice they’ve sought for decades?

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.