After checking in at a luxury hotel with no ID or credit card, a woman dies from a gunshot. Years later, her identity — and her death — remain a mystery.

Given a furlough to go Christmas shopping in 1973, a convicted killer escapes. Police have come close to apprehending him but believe he's still at large.

Patrick Mullins' unmanned boat is found miles from his home. When his body surfaces a week later, authorities are left with more questions than answers.

London, 1888. The city is gripped by a string of murders, each more gruesome than the last. Experts delve into one of history's most notorious mysteries.

Sigrid Stevenson's chilling murder on the stage of a locked campus theater still haunts a New Jersey college as new theories about her killer emerge.