Police say they're closer than ever to solving the mysterious disappearance of Sheila and Katherine Lyon, the young sisters who vanished almost 40 years ago from a suburban Washington, D.C., shopping center.
Lloyd Lee Welch, a 58-year-old convicted sex offender who authorities named as a person of interest last year, has implicated not only himself, but also an uncle and a cousin, according to newly released police documents.
Welch told detectives he saw his uncle sexually assault one of the girls the day after they were kidnapped, according to the documents. The documents also reveal investigators have been searching for the girls' bodies in rural southwest Virginia, where Welch's family owns property.
"Lloyd Welch has admitted he left Wheaton Plaza in a vehicle with the Lyon sisters on the day they disappeared," police say in the documents.
Sheila Lyon, 12, and her 10-year-old sister, Katherine, were last seen inside Wheaton Plaza, a popular shopping center in the Maryland suburbs, on March 25, 1975. The girls were on spring break from school and reportedly went to look at Easter exhibits. They had about $4 between them. They had been told by their parents, prominent radio disc jockey John Lyon and his wife Mary, to return home by 4 p.m., according to a March 25, 1980, article in The Washington Post.
Around 2 p.m. that day, the girls were spotted by witnesses at a pizza shop. What happened after that has remained a painful mystery.
Lloyd Welch, according to police, said he was with the girls that day in a car with his uncle, Richard Welch Sr., now 69, and a cousin, Thomas Welch Jr., who was 10 in 1975. Lloyd Welch told investigators he was dropped off near his home and his uncle and cousin drove off with the girls, according to the documents.
"Lloyd Welch stated that the following day he went to the home of Richard Welch and observed Richard Welch having sexual intercourse with one of the Lyon sisters," the court documents allege. "Lloyd Welch claims that he left the residence and never saw the Lyon sisters again."
Lloyd Welch told police he had nothing to do with "killing those girls." Richard Welch has declined to comment to reporters. His daughter told The Washington Post the allegations are a lie and "my dad would never do something like that."
No one has been charged in the case.
Lloyd Welch told police he doesn't know where the sisters are buried, the documents say. A search warrant alleges Lloyd Welch told a fellow inmate in Delaware, where Welch is serving time for sexually assaulting a 10-year-old girl, that he had kidnapped the Lyon sisters and buried them on family property in Virginia