defile. The location of any remains of the girls' bodies is still unknown. Had Welch been brought to trial without the girls' bodies entered into evidence, it would have been the longest time to have elapsed between a murder and a trial in a bodiless murder conviction. Ultimately, in September 2017, Welch pleaded guilty to two counts of first-degree murder for the abduction and killing of Katherine and Shelia Lyon in 1975. He received two 48-year sentences for the two counts of first degree felony murder he was facing. The sentences will be served concurrently. Documentary The murder was the subject of the 2020 documentary Who Killed the Lyon Sisters?, written and produced by Inkblot Narratives. The documentary follows journalist Mark Bowden's investigation of the crime. Who Killed the Lyon Sisters? was awarded Best Documentary in Television and Best Editing in Television by the 42nd Annual Telly Awards and two additional Silver Tellys: one for Cinematography in Television and one for True Crime. See also Crime in Maryland List of murder convictions without a body List of solved missing person cases John Brennan Crutchley, a deceased rapist and possible serial killer suspected of links to as many as 20 or so disappearances of teenaged girls and young women in and around the Washington, DC area. Murder of the Grimes sisters, unsolved 1956 killing of two sisters in Chicago who were out walking on their own The Last Stone, a book on the interrogation and conviction of Lloyd Welch by Mark Bowden. References External links Websleuths forum on Lyon Sisters (opinion forums but many newspaper articles and links are reprinted partially or in their entirety) Montgomery County Gazette Newspaper Article on the 30th Anniversary on impact on the community Missing person's profile of Sheila Lyon Missing person's profile of Katherine Lyon Who Killed the Lyon Sisters?, a documentary originally airing on Investigation Discovery produced by Inkblot Narratives and Wild Eyes Productions 1970s missing person cases 1975 in Maryland 1975 murders in the United States March 1975 events in the United States March 1975 crimes Kidnappings in the United States Missing person cases in Maryland People murdered in Maryland Murder convictions without a body Wheaton, Maryland Incidents of violence against girls Female murder victims