Bruce Miller was shot to death in the office of the business he owned. When a computer expert examined the computers owned by the victim's wife and by her lover, he found the evidence needed to convict the person responsible for the crime.

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A serial killer in Arlington, VA. leaves the same clues behind at each crime scene.

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A young mother is murdered after years of domestic abuse. There are clues at the scene: bloody footprints and DNA from the victim's rape kit. But the evidence which will conclusively tie the killer to the crime is on a freshly baked hamburger bun.

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One warm summer afternoon, the town of Verona, Wisconsin, faced its first triple homicide. To solve the case, investigators had to delve into the world of high rollers and offshore betting. With the help of forensics, they were able to bring down a killer who gambled, and lost.

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A little girl disappears from a Christmas party.

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Women in a small Louisiana city live in fear of a rapist who leaves no clues to his identity. But computer technology and behavioral science combine to give police a new forensic tool: geographical profiling.

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When a woman is found murdered in a bar, investigators believe the best evidence is the bite mark found on the victim. A postman is convicted of murder, but he maintains his innocence. Ten years later, improved technology yields new information.

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Children at a Texas hospital seem to be dying at a higher rate than at any other US hospital. Investigators look to a suspicious nurse.

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A girl was found dead in her backyard. Her parents claimed she was attacked and killed by the family dogs, but police disagreed.

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When a mother and her child are abducted during a carjacking, the crime is reported within minutes. Police know they have a small window of opportunity to find them... and the clock is ticking.

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