A jogger makes a heartbreaking discovery after a girl was abducted.

The efforts to find a missing cheerleader end with a chilling discovery.

A pregnant woman and her son vanish on the way to their local corner store, leaving the close-knit town of Deerfield Beach terrified. When the woman turns up dead, the community is convinced that they have a killer living in their midst.

Thirteen-year-old Carrie Jopek has disappeared. For her terrified friends and family, she seems to have vanished into thin air. But soon after, her body is found underneath a neighbor's porch, which sets off a hunt for her killer that spans decades.

Women are being murdered in Washington County, Oregon. A serial killer is one step ahead of the police. The community lives in fear. But only after more bloodshed do residents discover that the brutal killer has been living in plain sight all along.

Summer 2002. 5-year-old Samantha Runnion is playing with a friend in front of their homes in Stanton, California. Suddenly, a man appears and snatches Samantha, dragging her into his car. The race is now on to find her.