Detectives recall the career-defining cases that still keep them up at night, from mysterious disappearances to twisted family murders.
America's Most Wanted
Worst Neighbor Ever
Snapped
People Magazine Investigates
Crime Scene: The Texas Killing Fields
Conversations with a Killer: The Jeffrey Dahmer Tapes
Files of the Unexplained
Cold Case Files
Inside the World's Toughest Prisons
Cold Justice
Dateline