Forensic scientists work with the only clue recovered from a multiple-victim shooting: a 12-gauge shotgun. Scientists use unique methods to lift the serial number from the weapon to trace it to its owner.
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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.
A serial killer taunts police by strangling prostitutes and leaving their bodies in plain sight.
A prosecutor helps make video testimony viable in the case of a child's death due to drunk driving.
An obstetrician returned home from the hospital and found his wife on the bathroom floor. She was covered with blood and not breathing. He tried unsuccessfully to revive her, staining his clothes with her blood in the process, and then he called 911.
The investigation of a murder case in New Jersey is stalled until a similar attack occurs.
Hikers near Anchorage, Alaska, discovered a body wrapped in sheets that were edged in orange stitching. Clinging to the sheet, they also discovered a tuft of red carpet fibers, which led them straight to the killer.
A brilliant young architect became ill and died just before she was to testify in a criminal trial.
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.
Haunted by the disappearance of her mother, a young woman investigated her own. Her mother's diary was in the cold case file. There, she discovered a dark family secret, which might have been the reason her mother vanished.
A distant DNA sample may lead to killer of a husband and critically injured wife.
Police uncover a bizarre sequence of events that may prove a man innocent of killing his wife.
Technology able to analyze human bite-marks yields information on a woman's death.
11-year-old Krista Harrison is raped and murdered. There are a few clues to the killer's identity.
Just weeks before a witness is to testify against the man accused of sexually assaulting her, she is murdered in the front yard of her own home. Investigators immediately suspect her attacker, but they don't have enough evidence to prove his guilt.
Body of an unknown female is discovered 700 miles away from where a college student went missing.
A serial arsonist starts several fires that cause millions of dollars worth of damage and the deaths of three people. He is discovered partly through the use of forensic hypnosis.
Residents of Noel, Missouri, were stunned to learn that their bank had been robbed, and the bank president was missing. His body was later found floating in a lake, securely bound to a chair with duct tape.
When a little girl gets sick and dies, forensics investigators cannot figure out why.
Insects and a strand of hair unravel the truth behind the murder of a woman and her infant son.
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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