Monday

A beloved teacher is found murdered in handcuffs. The case goes cold for 30 years until new forensic techniques and dogged investigators finally expose the unlikely killer hiding in plain sight.

After a body is found in a ditch, police link it to a missing father who lives nearby. With no clear crime scene, investigators scour his home and the roadway, using trace evidence and creative forensic tests to reconstruct what happened.

Former Deputy Sheriff of Colbert, Georgia, Tracy Fortson shoots her boyfriend Douglas Benton as he sleeps, then abandons his body in a cement-filled trough in the woods.

Nicole Abusharif, 26, murders her partner Rebecca Klein for the insurance money, then leaves her body in the boot of her car for a night of drinking with her young lover, Rose.

University student Samantha Josephson climbs into what she believes is her rideshare home after a night out with friends. Instead, she is abducted and murdered. Investigators race to identify her killer, while her tragic death sparks a nationwide campaign to improve rideshare safety.

On the edge of the Rocky Mountains, near the small town of Gunnison, Colorado, Jake Millison has gone missing. His family isn’t too concerned with his whereabouts, claiming he’s run off before, but Jake’s loyal friends know better

When the body of former policewoman Taylor Wright was discovered buried on a remote Pensacola farm, detectives had a lineup of suspects to investigate - her ex- husband from whom Taylor stole $100,000, her new live-in girlfriend Casandra, or her best friend Ashley. A locked cell phone held the clues.

Nancy, David and Susan Spangler are found shot to death in their home - the brutal slaughter is deemed a murder suicide. Over the next fifteen years, two more Spangler spouses, Sharon and Donna die in similarly suspicious circumstances. After an exhaustive investigation by numerous agencies, authorities finally get a confession from psychopath Robert Spangler as he reveals his role as a serial spousal killer.

In 1997, a California mountain town is stunned by the murder of a longtime resident. Police wonder if a neighbor struck her down, if big-city violence invaded the close-knit enclave. Months of dogged investigation bring the case to a shocking conclusion.