Forensic Files

In this classic episode of Forensic Files, the longest running true crime series in television history, we explore the case of 17-year-old Crystal Faye Todd, who was raped and murdered in her small town. When one of Crystal's male acquaintances' DNA matched semen at the crime scene, it raised the question, why would he volunteer for a DNA sample? Originally aired as Season 7, Episode 5.

While standing outside of a motorcycle gang's clubhouse, two witnesses watched in horror as a truck intentionally ran over an unconscious man. The truck was finally located, but the forensics lab could not find a single speck of evidence in it. And the body didn't turn up either. Originally aired as Season 7, Episode 11.

When a severed leg is found in a dumpster, investigators are faced with the challenge of identifying the victim. Using anthropology, toxicology and DNA testing, police are able to determine who the victim was and follow the trail of evidence to his killer. Originally aired as Season 7, Episode 14.

When 6-year-old Michelle Door disappeared, her father became the prime suspect, having failed a polygraph. Years later, police learned that a man who'd been convicted of another murder lived just two doors away from Michelle when she disappeared. This discovery, and tiny drops of blood shed a decade earlier, helped police to solve the crime. Originally aired as Season 7, Episode 25.

In Miami, Florida, a sniper opened fire from the rooftop of a manufacturing plant, killing one employee and injuring two others in the parking lot below. When the gun was found, the police discovered that the shooter had scratched the serial number off of it to make it untraceable. But forensic scientists had a way to make the number reappear. Originally aired as Season 7, Episode 33.

The murders of an elderly couple leave police stumped. That is, until two years later when they get a huge break. A jeweler looking through old newspaper clippings recognizes a necklace the female victim wore as having been pawned in her own shop. Originally aired as Season 7, Episode 28.

A murder investigation in St. Petersburg, Florida, crosses jurisdictions from New York and Jamaica. The police rely heavily on cell phone mapping, wiretapping and a host of forensic evidence to reveal a suspect to the crime. Originally aired as Season 7, Episode 38.