After inspecting storm damage to a home in Tampa, an insurance assessor simply disappeared. Thirty hours later, her body was found in a nearby river. But the killer had been careless.
When a hit-and-run boating accident caused a death, police must search for one boat among 1200 others.
In 1986, Gary Dale Larson was stabbed to death in his Edmond, Oklahoma home and then the killer sexually assaulted Larson's girlfriend Janet Haynes.
Volunteers and police spend weeks searching for a missing girl. A psychic later leads them to a field where the body was found.
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.
A family break turns into a nightmare when the wife is found face-down in a lake with no idea whether it was murder, an accident or suicide, police turn to a new forensic technique.
A brutal murder, lots of suspects and conflicting evidence but the forensics were clear on one thing: The killer knew his victim. And that alone gave investigators a head start.
A six-year-old girl ran and hid when she saw her grandmother being beaten to death, but the man followed, beat and assaulted her. She said the assailant was her uncle, who was convicted.
On May 12, 1994, Crystal Perry was viciously murdered in her home in Bridgton, Maine. Michael Hutchinson, 32, was found guilty of murder in the 1994 slaying at Perry's home.
After shooting his victims in the head, the killer staged the scene, placed the incriminating evidence into a plastic bag and tossed it into the river.
When a woman went missing, friends and family were determined to find her. Their worst fears were confirmed weeks later when her body was discovered.
Christina Sanoubane was murdered in her Cedar Rapids apartment after moving away from her abusive boyfriend.
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.
When a man's story of a killing contradicted physical evidence, investigators turned to forensic science.
A security guard disappeared from his post without a trace his remains were found a year later in a remote camp site.
Volunteers and police spend weeks searching for a missing girl. A psychic later leads them to a field where the body was found.
The crime scene was especially violent: A couple had been shot to death. Was their teenage daughter complicit?
An aspiring model turned up dead and the prime suspect was her boyfriend. When he was eventually cleared, investigators had to dig deeper to find the perpetrator.
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.
On May 12, 1994, Crystal Perry was viciously murdered in her home in Bridgton, Maine. Michael Hutchinson, 32, was found guilty of murder in the 1994 slaying at Perry's home.