A young, attractive hairdresser was sexually assaulted and murdered in her own beauty salon. The evidence at the crime scene didn't match any of the suspects and the case went cold for ten years.
In 1995, Palm Beach waitress Denise O'Neill is abducted and murdered. Her neighbor Luis Caballero arouses suspicions by his odd behavior toward TV crews covering the crime.
In 1999, Susan Fassett was gunned down as she left her church choir practice in Poughkeepsie, NY. After clearing her husband, police turned their attention to Fred Andros, with whom Susan had an affair.
In 2006, Darlene VanderGiesen received threatening emails and then disappeared. Tracking the source of the emails led police to the home of Daphne Wright, where they believe a murder was committed.
A Michigan State University grad student disappeared and was presumed dead. With the help of a professor of geological sciences, police hoped to get the "dirt" on her killer.
There was no clear reason for a young, healthy college student to be dead. But when the coroner discovered a tiny clue during the autopsy, investigators were able to uncover a mystery.
Police don't have a basis for comparison to match shoe impressions, blood drops and DNA evidence from a murder scene.
In 2004, Rebecca Barney and her soon-to-be ex-husband Fred were found shot to death in their Tulsa, Oklahoma, home, which had been set on fire.
The prime suspect had a criminal record and his driver's license was found at the scene of a brutal double homicide.
When a hit-and-run boating accident caused a death, police must search for one boat among 1200 others.
A serial rapist is on the loose in a Texas town. No one knew where he'd strike next, but the audacity of his attacks and the escalation of violence against his victims made finding him imperative.
When the number of bloodstains at a scene were abnormal, it was up to forensic scientists to find out why.
The wife of a respected police officer was murdered in her own home. The crime went unsolved for more than a decade, until a newly formed cold case unit took a fresh look at the evidence.
In 2000, construction manager Darrell North was found dead in his work trailer in Ft. Worth, Texas. When investigators arrived, they found that he had been stabbed 46 times.
In 2003, St. Cloud teenager Jason MacLennan returned home after a night out with friends and discovered his father Ken's body lying in a pool of blood.
In 1999, Patrick McRae was found dead in his Des Moines home and the crime scene was awash with blood.
Even though their daughter had run away before, she'd always come back. Her parents were sure this time would be no different, but they were wrong.
Seattle police had no suspects in the violent murder of post-grunge singer, Mia Zapata. More than a decade passed before the evidence could be used by forensic scientists to identify the killer.
The woman in the back of the truck was flailing her arms, screaming. They thought she was doing something dangerous for the fun of it.
A 13-year-old girl went missing from her Colorado home and the only evidence the kidnapper left behind was three fingerprints on a window screen.