Helle had suspicions that her husband was cheating. She hired a private detective to find out. Then she disappeared. Watch Forensic Files to get the answer.

An innocent bystander at a Pistol and Revolver club is killed. Lasers help solve the case.

Caren Campano disappears and the explanation from her husband Chris doesn't hold up. Police find a large stain on the Campano's bedroom carpet. They perform an eerie chemical test that reveals a room spattered with blood. Complex 'reverse paternity' tests of Caren's relatives match her blood type to the blood on the carpet. The evidence convicts Chris Campano of murder, even though the body wasn't found until a year later.

The first case to use DNA evidence is detailed. In 1983 Leicester, England, police were stymied by a rape/murder of a 15-year-old girl; three years later, faced with a similar crime, they turned to Dr. Alec Jeffreys, a molecular biologist with a revolutionary approach to solving the case.