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A teen's murder shakes a Nevada community, especially when two unlikely people make confessions.

A teen's murder shakes a Nevada community, especially when two unlikely people make confessions.

Recently uncovered pages from John Hinckley Jr.'s diary, which he began writing after he was arrested for trying to assassinate President Ronald Reagan; an interview with the officer who questioned Hinckley after the attempted assassination.

A man uses a dating site to meet and murder a college student.

When a South Carolina coroner arrives at the scene of a car accident to find his friend deceased, he notices some unusual markings on her face and begins to think her death looks suspicious.

When a Colorado mother vanishes, the detective investigating her disappearance discovers a connection to a previous assault; the survivor of that attack recounts her terrifying ordeal.

After an apparent brazen home invasion during the holiday season in a Connecticut community leaves Connie Dabate dead, investigators discover a silent witness that cracks the case wide open.

A young mother in Utah vanishes and the only suspect, her husband, acts suspiciously; Stephanie Bauer examines never-before-seen home video recordings that shed light on the dramatic events surrounding the disappearance of Susan Cox Powell.

A defensive husband flees justice after the disappearance of his wife drags both of their families down deeper into destruction and tragedy.

A once prominent heart surgeon is found dead in his bed after suffering mysterious health conditions.

A scenic drive up the coast of California turns deadly when a young woman falls from an overlook in Big Sur, but when the people closest to her hear about the tragic accident, they are convinced that something more nefarious is going on.

Investigators focus on her husband as the main suspect when a woman is found dead at the bottom of her staircase, but family and friends rally behind him.

Mountain of Secrets; Special episode of "Cold Justice" featuring insights from Kelly Siegler and behind-the-scenes facts.

When a Navy officer succumbs to a mysterious illness after months at sea, nothing makes sense, until an autopsy yields a stunning revelation; all roads lead to dead ends, until they zero in on an unlikely target.

When a successful family man is discovered in the rubble of a deadly explosion, investigators desperately try to determine if it was a planned hit, an attempted terrorist attack, or something else...

Mountain of Secrets; Special episode of "Cold Justice" featuring insights from Kelly Siegler and behind-the-scenes facts.

When a Navy officer succumbs to a mysterious illness after months at sea, nothing makes sense, until an autopsy yields a stunning revelation; all roads lead to dead ends, until they zero in on an unlikely target.

When a successful family man is discovered in the rubble of a deadly explosion, investigators desperately try to determine if it was a planned hit, an attempted terrorist attack, or something else...