Season 18

After two best friends are reported missing, Texas and Minnesota police team up to bring a suspected serial killer to justice. An accomplice shares her side of the story from behind bars, revealing chilling details of the crime.

C.J. Wynn, author of a novel about the case, says that Cynthia and Richie Wilder have not expressed remorse for the murder of Angila Wilder.

Authorities respond to a car fire and find a charred body discarded nearby

Just months before his retirement, a missing trucker's body is found in a remote creek; as detectives run out of leads, a seemingly minute detail breathes new life into the investigation revealing two lovers with a nefarious plot.

When an esteemed California pastor is found executed in an almond orchard, investigators turn to his complex love life for answers.

When a crime spree leaves five dead, South Carolina authorities kick start a multi-state investigation to capture a desperate couple on the run.

After a young mother is murdered in broad daylight, Texas authorities are on a hunt for a masked gunman.

A welfare check confirms the worst when a woman is found brutally murdered on her couch.

When a missing man’s bullet-riddled body is found off the side of a road, police must dig into his complicated past to uncover the truth.

When a shocking crime is committed in broad daylight that leaves a young man dead on the street, the investigation uncovers a personal vendetta. In exclusive prison interviews, the killer couple will each share their version of events.

When a young soldier goes missing just two days after his wedding, authorities fear the worst has occurred in their small Ohio town.

A house fire in a small town in Illinois ignites a homicide investigation after a mother's body is found in her bedroom.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body.

A woman's lifeless body is rushed to a hospital in New York after two strangers found her unconscious at a subway station.

This episode uncovers the harrowing story of a successful businessman who was murdered in his garage during a robbery, witnessed by none other than his wife.

After years of being independent in Miami, 31-year-old property manager Aileen Seiden was living happily when she reconnected with an old friend from High School, Zachary Abell.

When a nurse's aide disappears without a trace, detectives learn she was entangled in a complex love triangle. After a tragic discovery in the woods, the investigation points to a sordid affair and a jealous lover looking for revenge.

When authorities learn an Ohio woman has been missing for nearly half a year, all signs point to foul play.

When a Minneapolis realtor is murdered after an attempt on her boyfriend's life, authorities believe the heinous crimes are connected.

When a beloved woman is gunned down in the street near her home, details of a bitter divorce encompass the investigation.