
Alongside detectives and journalists, family members offer clues, present theories, and identify suspects, hoping one viewer holds the key to solving the mystery.
Former White House aide Jack Wheeler is found in a landfill; security footage shows him acting disoriented before his death.
A woman is found dead in a luxury hotel with no ID, credit cards, or luggage tags. Was she a spy?
Convicted killer Lester Eubanks escapes during a 1973 Christmas shopping furlough and has been a fugitive ever since.
Residents of Japan share stories of encounters with "ghosts" following the devastating 2011 Tohoku tsunami.
JoAnn Romain disappears from a church; police rule it a suicide by drowning, but her family suspects she was abducted.
Two toddlers vanish from the same New York City park months apart in 1989. Their families still search for them.