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The case of a murdered teen goes cold for 30 years after her body is found at a party spot, but after the investigators bring the killer to justice.

The execution-style shooting of a loving Georgian grandmother puzzles the authorities who are assigned to her case, and her family turns on themselves.

A deceased woman's body is found in an abandoned trailer in Florida and the investigators on the case must uncover the dark truth about what happened to her.

After 20 years, the killer of an Idaho teenager is caught, and the man wrongly convicted of the crime sees a shocking turn of events.

After 20 years, the killer of an Idaho teenager is caught, and the man wrongly convicted of the crime sees a shocking turn of events.

Josh Mankiewicz reports the story of a successful realtor who was attacked and left for dead while showing a home in what looks like a murder-for-hire.

When a young woman is found brutally murdered in her Baltimore home, police find the number one written on the wall in red lipstick above her body.

When a successful businesswoman is found dead in her own home, the authorities find a lead using wiretaps and data analysis, pointing them to a familiar face.

Chilling details come to light in an alleged murder-for-hire plot targeting a former New York City police officer's husband.

When young mother Sara Summer vanishes from a small Tennessee town, the investigation into her life exposes a world of romance, lies and a fatal betrayal.

A newly single mother of two vanishes after going on a date with an old high school friend; investigators race to uncover the true identity of the mystery man.

A bomb rocks Chicago killing Mark Toney, investigators dig beneath the rubble to expose a violent, seductive con game and a shockingly deceitful relationship.

A young mother is shot dead outside her home, and investigators uncover a toxic workplace, a twisted obsession and a killer relationship.

A beloved middle school art teacher is found dead in her home; as detectives dig into her marriage, they uncover a world of jealousy, sex and liaisons.

Katelyn Markham vanishes weeks before college graduation; the investigation unfolds over 13 years, uncovering lies, rage and a betrayal that hits close to home.

Elana Fric, a respected doctor and devoted mother, vanishes into the night; as detectives delve into Fric's personal life, dark secrets rise to the surface.

Investigators uncover a vengeful family's 30-year-old murder plot after a dismembered and a decomposed corpse is found buried at a Seattle home.

The police delve into the past of a missing mother, who was found buried in her own backyard, to discover who could have murdered her.

A man stumbles on a body in a neighbor's garage and Detroit police hope the victim's tattoo will help identify the victim and point them toward the killer.

A late-night gaming party goes dangerously wrong when a young teenager disappears from the coastal town of Everett, WA.

Homicide detectives are called in to search for an unknown killer when a homeowner discovers a barrel with a mummified corpse inside.

A detective refuses to give up on finding the killer behind the brutal murder of an elderly woman, who was found stuffed inside her own wishing well.

A late-night gaming party goes dangerously wrong when a young teenager disappears from the coastal town of Everett, WA.

A father disappears from the Cincinnati suburbs, setting off a desperate search that exposes small-town secrets, rivalries and past threats.

A devoted wife and mother is shot to death in a library parking lot; as detectives search for her killer, they discover a twisted story of adultery.

When 25-year-old Keosha Gilmore is shot to death in a car while returning from a date, claims of a mysterious hooded shooter rock this quiet Boston Street.

After a woman dies from an apparent fall in the shower, her two friends team up to get justice on her behalf.

After a woman dies from an apparent fall in the shower, her two friends team up to get justice on her behalf.

When a woman is brutally murdered in her bed, her husband and her son both put the blame on each other, and the police must determine who the liar is.