Its "The investigation Continues" podcast and it will start on March 20th.

WTOP/Washington, DC and will launch a new podcast series, "The Investigation Continues," on March 20. In its five-part debut, WTOP reporter Neal Augenstein examines the circumstances behind the 1975 disappearance of 12-year old Sheila Lyon and her 10-year old sister Katherine Augenstein takes an in-depth look into the disappearance and the clues investigators pursued, and in some cases, missed.

"The disappearance of Sheila and Katherine Lyon was so sudden, frightening and tragic. It really traumatized parents and their kids," said Augenstein. "We're now learning how close investigators were to making an arrest in 1975, and the crucial mistakes that let a suspect remain free for decades."

"The Investigation Continues: The Lyon Sisters" will be available each Monday on and can be subscribed to on iTunes and PodcastOne.