A pregnant 23-year-old woman in Iowa is shot in her own bed, and investigators have to work out whether if they are looking for somebody with a deadly grudge or a culprit much closer to home.
An African-American girl is snatched off the street in Cleveland and is assaulted and murdered on her way to school. Thirty years on her murderer is finally caught.
On her last day of school, a girl is beaten and set on fire, leaving everybody shocked in her California community.
Years on from when a woman is shot and the case goes cold, news of a potential prison confession sees investigators back at her front door.
In Oregon, college student Brooke Wilberger, a devout Mormon, is snatched at a parking lot in broad daylight, causing a massive search that hits the headlines across the country.