A young girl vanishes on a trip to the mailbox; her abandoned pink bicycle may be the key to solving the disturbing mystery.

To solve a brutal murder police must challenge confessions and lies.

Can a young mother's terrifying last words lead police to her killer?

A festive New Year's Eve party ends with a heartbreaking tragedy.

Police must analyze a long emotional and rage-filled 911 call to see if it was made by by a distraught husband or a killer trying to cover his tracks.

Police try to make sense of the confusing crime scene and find the person who killed a young mother.

After police find a young mother bound and murdered in her bedroom, her family challenges police to bring a heartless killer to justice.

Police must solve the murder of a young mother who was savagely strangled to death in her bed while her two young sons slept just steps away; decades of investigating reveal an unthinkable betrayal of trust.

A teenage girl discovers her mother's true identity, along with a telegram that says she's been murdered; her crusade to bring a killer to justice may also bring her closer to the woman she never knew. 

Puzzling evidence and shifting witness accounts hide a terrifying crime.

The murder of a college student in her off-campus apartment leads police to believe the killer may be someone she knew, and the investigation threatens to tear her grieving family apart.

When a young girl vanishes under mysterious circumstances, police must discover if she simply ran away or was actually the victim of something far more sinister.

The chilling murder of Lee Rotatori and the bizarre crime scene evidence police found inside her motel room mark the beginning of a heartbreaking homicide investigation with multiple victims.

This Episode never aired (Mystery in Coachella Valley). Now the episode numbers are mixed up!  But somebody thinks it did air. I keep deleting it to fix the episode numbers but somebody keeps putting it back. --- https://www.investigationdiscovery.com/show/on-the-case-with-paula-zahn-investigation-discovery-atve-us

The gruesome murder of horse ranch owner Wendi Brant traumatizes her friends and family; police focus on her estranged husband, but there are other potential suspects that muddy the investigation and throw the case into a decades long tailspin.

After the murder of a young girl walking to school, police race to catch her killer before he can destroy another loving family.....

A homicide and its disturbing details devastate a teenager's loving family, leaving a tight-knit community to wonder if their loved one could become the next victim.

Police investigating the brutal murder of a young woman ask themselves a chilling question: Was the ambush style shooting that ended the victim's life, actually a terrifying case of mistaken identity?