Forensic Files
While investigating the murder of 9-year-old Jessica Knott, police use a garbage bag to connect a suspect.
While investigating the murder of 9-year-old Jessica Knott, police use a garbage bag to connect a suspect.
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Authorities track a kidnapper who let his victim write a last will and informed the family of her murder.
A woman convicted of killing her mother in a car fire is granted a new trial. An expert witness has a different opinion as to how the fire started and, if proven, would clear the woman of any culpability.
In 2002, the eyes of the world were on Virginia and Maryland. A serial sniper was on the loose, killing innocent, unsuspecting citizens. Just how was he caught?
A murder investigation in Florida crosses jurisdictions from New York and Jamaica. The police rely on cell phone mapping, wiretapping and a host of forensic evidence to link a suspect to a murder.
A three-year-old develops a respiratory condition. His father has Alzheimers. An investigator reveals that their ill health is due to mold in their modern home.
In the case of the Center City Rapist and the murder of Shannon Schieber, Philadelphia authorities use an anonymous letter and geographic profiling to hone in on a suspect.
When a serial killer was terrorizing the city of St. Louis, the FBI didn't need lab tests, fingerprints or any of the usual methods. All they needed was a computer.
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.
The only clue recovered from a shooting is a twelve-guage shotgun. Scientists use unique methods to lift the serial number from the weapon to trace it to its owner
Discovering that an assault suspect is left-handed is crucial to a police investigation dating back 16 years.
Janet Overton died suspiciously in 1988, and the investigation hit a dead end when the autopsy indicated no foul play was involved. A telephone tip and the sensitive nose of a forensic examiner indicated otherwise.
An investigation into the murder of Katie Poirier is stymied by the lack of a body. Finally, investigators use a single tooth found among some charred remains to identify her.
While investigating the murder of 9-year-old Jessica Knott, police use a garbage bag to connect a suspect.
The murders of an elderly couple leave police stumped until, two years later, they receive a major break.
In 1996, Indiana police identified Richard Alexander as the "River Park Rapist" who assaulted four women that year. Later, DNA analysis casts doubt on his conviction.
A coroner finds telltale clues on the badly burned body of a murder victim, sending police in pursuit of a couple of killers.
The police investigate when a severed leg is discovered among garbage. Conventional means of identifying the victim are impossible, leading investigators to rely on DNA, forensic anthropology and toxicology.
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 are able to track the assailant to his front door.
In 1984, a passerby finds the torso of a woman in a cardboard box. A forensic entomologist analyzes nearby insect activity to determine when the victim was killed.
Two people witness a truck driving over an unconscious man and flee into a nearby bar, but when the police turn up, the truck, the man and the witnesses are gone.
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