Jillian Lauren, author of 'Behold the Monster: Confronting America's Most Prolific Serial Killer,' speaks with A&E True Crime about her relationship with Samuel Little, the most prolific serial killer in U.S. history.

Detective Lindsey Wade on the experience of solving the 1986 cold case murder of 13-year-old Jennifer Bastian from Tacoma, Washington.

Was a dead woman found in Norway in 1970 a spy, a member of an international criminal organization or did she suffer from a mental illness?

Bill Kurtis, the host of A&E's true crime series Cold Case Files, on what he loves about the show, effective narration and a memorable case.