Season 4

In the summer of 1996, 22-year-old Carrie Culberson was last seen driving away from her house. The timing of her disappearance was suspicious as she was about to testify in court against her abusive boyfriend, Vincent Doan. Did she simply run away from a troubled relationship or was her disappearance something far more sinister?

After a frantic 911 call in a Tampa suburb, investigators arrive to find a shaken Timothy Permenter outside the home of his girlfriend, Karen Pannell. The former model had been stabbed multiple times and police discovered the letters "ROC" written in blood on the wall next to her body. Would the victim's dying act point them to her killer?

After a September home game in the tiny town of Tatum, TX, 18-year-old David Reid jumped into his truck and drove off into the night. Meanwhile, 4 cheerleaders heading out for a post-game party pulled onto Highway 149 and suddenly, the vehicles crashed into each other. David was the only survivor, but was he to blame?

Margaret Bradley had Multiple Sclerosis and was living with her daughter, Rhonda, a nurse. A part-time aide helped Margaret while Rhonda was at work. In 2002, Margaret suddenly fell ill and died the next evening of unusual and dangerously low blood sugar levels. Rhonda, who knew her mother didn't have diabetes, looks into her mother's untimely end and wonders if her mother's death was really murder. Her search for answers would eventually lead authorities to open a criminal investigation.

When a young girl goes missing from her university campus, her mother is forced to lead an investigation for the truth. Can she find her precious daughter before it’s too late?

A small town is outraged when its unofficial mayor is the victim of a attack at work. The police investigation uncovers a number of possible suspects and a confusing trail of evidence but will it lead them to the person who committed the crime?

When a 26-year-old wife and mother vanishes investigators wonder if she simply just ran away or if it was something far more sinister. The search for answers would take nearly a decade and lead her family on a journey they could never have imagined.

A young boy is murdered in his bed in the middle of the night. Police suspect the child’s mother. Over the next nine years there will be accusations, a confession and a conviction but will justice be served?

After a wealthy couple is found dead in their stately Virginia home investigators are taken on a wild journey around the globe before they uncover the shocking truth.

When a man is found murdered on the side of the road investigators must unravel a tangled web of intrigue that will test the strength of a family's love.

After a young woman disappears from her mountain home, it looks like the case will never be solved. Then, a retired FBI profiler joins the cold case team and jump starts a 13-year-old investigation.

A woman is found clinging to the guardrail of a steep embankment. She tells police a harrowing story; two men had attacked her and her husband at gunpoint and now he is missing. Was it a robbery gone wrong or part of a far more sinister plot?

When a young minister’s wife is found dead, it appears to be a tragic accident. But then, another member of the congregation is murdered. Police begin to wonder if its just a coincidence or a calculated plot.