20/20

For three decades, Leo Schofield has been serving life in prison since his wife’s brutal stabbing. The “20/20” season 45 premiere poses the question: is Leo in prison for the crime of another man?

Investigating the remains of victims found on the bottom of Lake Mead, NV as the reservoir water level drops due to drought. So far, Thomas Erndt, Claude Russell Pensinger and Donald P. Smith have been identified, submerged for decades.

After a popular local musician is found dead, covert police surveillance uncovers horrific murders in Colorado and exposes a killer.

A twisted couple’s bizarre marriage pact, and how one of them was brought to justice by a small-town police chief.

A 19-year-old daughter vanished after a party and was never seen again. A new ‘ABC 20/20’ goes inside the stunning, decades-long investigation for justice for Kristin Smart.

The investigation of the Gilgo Beach murders, featuring interviews with family members of the victims and key players in the case - including Suffolk County Police Commissioner Rodney Harrison and Suffolk County Defense Attorney Ray Tierney.

After teen vanishes, family searches for answers but police see a suspect closer to home.

When a 12-year-old girl is snatched from her bedroom, the kidnapping shakes a small town.