The 1996 Seattle murder of suburban couple Raquel Rivera and Jay Johnson is detailed. Evidence from the couple's dog, Chief, eventually ties one of the murderers to the scene. This is one of the first cases where dog DNA was used to convict.
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The disappearance of Philadelphia college athlete Aimee Willard is investigated after her car was found on the roadside. When her body is found, the police find unusual marks on her body and DNA evidence that eventually leads to her killer.
The 1996 Seattle murder of suburban couple Raquel Rivera and Jay Johnson is detailed. Evidence from the couple's dog, Chief, eventually ties one of the murderers to the scene. This is one of the first cases where dog DNA was used to convict.
Cat hairs found in evidence lead to the first testing of animal DNA to solve a crime.
The investigation into a brutal attack on two boys near a pond relied on evidence fished out of the murky water. It was the first case where diatom evidence was used to place a suspect at the scene of the crime.
The story of how scientists solved a 1992 murder case involving cremation. It takes a long time and a fire to cremate a human body and destroy evidence of foul play. But the coroner who performed the autopsy on the body found telltale clues.
An unusual case involving the 1988 rape and murder of Nancy DePriest.
A man claims responsibility for a murder that another man was imprisoned for.
The investigation into the kidnapping and rape of an 18-year-old Ohio woman is aided when the victim returns hours after the incident occurred. With her help, the police can track the assailant, Craig Bailey, to his front door.
Fire wood found a a crime scene helps investigators locate a killer.
Who put a bomb in the home of a 29-year-old woman and killed her?
A 29-year-old woman was killed instantly when a bomb exploded in her home. The device was so powerful that shrapnel was embedded in houses across the street. The bomber had not only knowledge and skill but also a motive for murder.
Chilling tale of debt and deceit when the head chef of a restaurant is found dead.
A serial arsonist was on the loose in Washington, DC.
When the head chef of a historic Philadelphia restaurant was found dead, investigators interviewed the usual suspects: family, friends, and co-workers. As they sifted through the evidence, police uncovered a chilling tale of debt and deceit.
Armed with little else, police hoped the shoe impressions found at a Lansing, Michigan, crime scene would put their investigation of Audrey Nichols' murder back on track.
When a victim is brutally murdered in his own bed, investigators find a shoe impression in the mud outside: physical evidence they hope will lead to the killer.
Three seemingly unrelated deaths proved to be serial murders. The killer had been careful. He used poison that had no taste or odor. Fortunately for investigators, it also had a unique chemical signature.
When a man is gunned down in his own garage, police discover that a wound sustained by the grieving widow may have been self-inflicted. They turn to science to help unravel a twisted tale of lust, greed and deception.
When a popular disc jockey was found murdered in a community garden, police swung into action. A sniffer dog and a blood spatter expert led police to the killer, and he'd been much closer than they realized.
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