When a college student is reported missing, police believe their investigation will be like countless others. But when they discover blood spatter in her boyfriend's bedroom, they know this case is going to be different.
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Three fingerprints on a window screen are enough for a print examiner to uncover a serial killer.
A pair of tennis shoes are found near a victim who had been stabbed on the beach.
A woman, who had recently rejected a co-worker half her age, ends up dead in her driveway.
A professor of geological sciences helps police get the dirt on a woman's killer.
Ten years after the murder of a rock singer, scientists use evidence to bring her killer to justice.
An ATM transaction allows Texas detectives to pinpoint a suspect in the slaying of a teacher.
A squashed tomato and a pinpoint reflection of light in a photo help catch a killer.
Casino security cameras offer the final images of a woman, just before she vanishes without a trace.
Two men die of heart disease six years apart and each was once married to the same woman.
A man is found strangled and burned, and the killer thinks he has destroyed all the evidence.
Cutting-edge technology proves the police arrested the wrong suspect in a young girl's murder case.
The development of technology could help solve a murder case that is twelve years old.
Ammunition box and fibers reveal the betrayal that led to the murder of a millionaire's family.
Forensics determines whether a woman's death in a fire is due to arson, murder or accident.
Tiny clues tell a lot about the murder of a young woman found in a ravine.
A man dies after falling down the stairs; a witness says one thing and the evidence says another.
A device intended to save lives proves to be the only witness to a man's death.
DNA profiling reveals clues leading to a killer's identity 20 years later.
In 1991, Grand Junction, Colorado, is on edge after a series of deadly bombings.
A woman is abducted and a month later found dead; a tip leads investigators in the right direction.
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