Journalist Bob Cyphers on the decades-long search for the unidentified serial killer and what's made the process of identifying him so hard.
Two years after the Jonestown Massacre, ex-members of the cult, Al, Jeannie, and Daphene Mills, were murdered. The killer was never caught.
In 2017, Libby German and Abby Williams were murdered near a trail in Delphi. Journalist Susan Hendricks speaks to us about her book, 'Down the Hill' about the case.
From teen victims Libby German and Abby Williams to Alonzo Brooks to the 'Jennings 8' and more, we look at some murder cases that investigators could use the public's help in solving.