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A car is set on fire near a beach and detectives quickly find the body of a young woman. But, the killer's attempt to hide evidence leads police straight to them.

When the bodies of young women appear on the outskirts of Laredo, Texas, Cpt. Calderon leads a dramatic manhunt. It ends in a face-off with a killer.

Two teenagers are brutally attacked by a stranger in a park in Portland, Texas. Helped by the survivor, police desperately hunt for the callous killer.

22-year-old Erin Belanger and her boyfriend Francisco "Flacco" Roman move to Deltona, Florida, hoping for a new start - unaware of the danger awaiting them.

When three synagogues simultaneously go up in flames, agents work relentlessly to solve the arsons. What they discover is a sinister plot of bigotry, fire and fury.

Codi Joyce died at a house party after a fight in 2015 and nobody was ever charged for his murder. What really happened that night and why will no witnesses talk?

The stories of these perpetrators may be different, but their motives are always the same: to stay out of prison and live life on the run.

The stories of these perpetrators may be different, but their motives are always the same: to stay out of prison and live life on the run.

When former homecoming queen, Melinda Snyder, is killed, her home-town is embroiled in a mystery that wouldn't be settled for a long time.

Lance Herndon was living the American dream, until he was brutally murdered. Behind the gates of his upscale community, investigators find a twisted web.

Suspicious signs lead to shocking revelations in these true stories of people who discovered they lived with a killer. Will they become entangled in evil?

Suspicious signs lead to shocking revelations in these true stories of people who discovered they lived with a killer. Will they become entangled in evil?

A woman raised in a strict religious community uncovers the truth about her first love and battles church members determined to silence her.

In 1983, the Secret Service trails a counterfeiter. The audio recordings they find of him torturing women reveal one of history's most depraved serial killers.

Follows the unpredictable twists and turns of missing person cases, tracking investigations aimed at solving how and why people simply vanish.

In 1990, a teenager is convicted of murdering his parents. Forced into a confession, Martin Tankleff spent 20 years trying to prove his innocence.

In September 2003 in Illinois, 62-year-old Mexican immigrant Felipe Ulloa tells his wife Eloisa he is going to a local bar to collect a 75 debt. He never returns.

The security and customs services at the border of Poland are on constant watch to stop illegal items entering the country. It's their job to detect crime.