Lives changed in the 20 years following an unsolved murder, and so did forensic science. In time, a high-powered microscope and DNA profiling revealed a clue no one had seen before.
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In 2006, Texas real estate agent Sarah Anne Walker was found brutally murdered in a model home.
In this international case of extortion, murder and stolen identities, scam-artist Albert J. Walker assumes the identity of co-worker Ronald Platt.
In the 1990s, the media dubbed Richard Rogers the "Last Call Killer" because he targeted men in gay bars.
Avis Banks and her unborn child were brutally murdered. The body was discovered by her fiancé, Keyon Pittman. When police learned that Pittman was having affairs with other women, he became the prime suspect.
A suspect's former lover comes forward with a tale of murder, mutilation and cremation, but there's no way to test the story's validity until a plant pathologist and a dendrochronologist conduct tests where the cremation supposedly occurred.
Lives changed in the 20 years following an unsolved murder, and so did forensic science. In time, a high-powered microscope and DNA profiling revealed a clue no one had seen before.
Police were puzzled by an obscure print found at a crime scene where one man had been killed and two teenage girls were seriously injured.
A young woman attends evening church services... then disappears. When her abandoned car is found, the tank is empty and a gas can she kept in her trunk for emergencies is missing.
For more than a year, hateful letters were sent to a school teacher in Pennsylvania. DNA analysis would eventually help seal the perpetrator's fate.
The wife of a murdered horse rancher explains that the last time she saw her husband was when he was leaving the house to go jogging. Police become suspicious when forensic evidence eventually leads investigators back to the ranch.
A coroner finds telltale clues on the badly burned body of a murder victim, sending police in pursuit of a couple of killers.
In 1980, Michigan resident Shannon Mohr died in what was reported to be a horseback riding accident by her new husband David Davis. After her death, Shannon's family reported to police their suspicions that Davis seemed far from grief-stricken.
A fan of murder mysteries and forensic science shows uses what she learned from TV to determine who was responsible for the accident which permanently injured her 4-year-old daughter.
Police don't have a basis for comparison to match shoe impressions, blood drops and DNA evidence from a murder scene.
A young couple decided to celebrate their first wedding anniversary with a camping trip to Mount Hood. During the trip, the husband was shot and killed. Later, his wife told two different versions of the events which led to his death.
British detectives worked with a pioneering scientist to solve crimes of sexual assault and serial murder. This 1986 case marked the first time DNA was used as evidence in a court of law.
In 1987, the death of Crystal Purcell was considered an accident. Then in 2001, Barbara Purcell called police to suggest that her estranged husband had killed Crystal.
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.
In 2007, Shamaia Smith disappeared from the strip club she worked at in East Hartford, CT. Police look at various customers of the strip club, but focus on local businessman Kenneth Otto.
When Genell Plude is found dead in her bathroom, the scene points to suicide. But a coroner's inquest and a unique application of forensic science gave investigators a different explanation for her death.
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