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The Nanteos Cup and claims that it may be the Holy Grail. Also: a woman searches for her mother's family; a hitchhiker becomes a murder suspect.

Claims of ghostly phenomena attributed to a resort in the Adirondacks. Also: a college student disappears after a Halloween party; a Kentucky teenager is arrested for a double murder.

The 2014 murder of a mother is investigated.

A team of forensic experts uses advanced technology to solve cold cases and bring justice to victims and their families. Each episode unveils new clues.

A detective investigates a cold case involving skeletal remains found years ago. Clues lead to uncovering secrets and a search for justice.

On Valentines' Day 2007, police in Southern California were called to a particularly violent murder scene. Advances in forensic genealogy finally solved the case.

After a young woman was found beaten to death in Wisconsin in 1984, the killer evaded detection for decades. However, a revolutionary DNA method later revealed his identity.

On Valentines' Day 2007, police in Southern California were called to a particularly violent murder scene. Advances in forensic genealogy finally solved the case.

After a young woman was found beaten to death in Wisconsin in 1984, the killer evaded detection for decades. However, a revolutionary DNA method later revealed his identity.

Every 5 seconds there's a victim of identity theft. LifeLock helps alert you, restore your identity, and reimburse lost funds?leading the way in protecting families every day.

A Texas love triangle turns deadly, with a pink gun leading to an arrest. But new evidence forces investigators to reevaluate the case.

A mother of two disappears from her parents' home in Michigan without her phone and IDs. The police later declares her dead even without a body.

A mother survives a shooting attack in her home.

The death of beloved Vietnam War veteran Bob McClancy is believed to be a suicide until a dark conspiracy is uncovered.

Lead investigators and family members speak about the murder of Colorado mother Kelsey Berreth, whose disappearance made national headlines after she was last seen grocery shopping on Thanksgiving in 2018.

The cold case of a young woman drowned at sea during a romantic boat trip.

1984 Olympic medalist David Laut was shot to death in his backyard in 2009. Police began looking for a wanton criminal, but what they found was far more sinister.

A couple disappear, leaving behind a fortune in rare birds; co-workers discover a man's body in a lift a ghost menaces female patrons at an inn.

An investigation into the suspicious disappearance of a Florida transplant.