A Michigan State University grad student disappeared and was presumed dead. With the help of a professor of geological sciences, police hoped to get the "dirt" on her killer.
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The wife of a respected police officer was murdered in her own home. The crime went unsolved for more than a decade, until a newly formed cold case unit took a fresh look at the evidence.
After a Philadelphia convention, 180 legionnaires contract pneumonia-like symptoms and 29 of them die.
A Michigan State University grad student disappeared and was presumed dead. With the help of a professor of geological sciences, police hoped to get the "dirt" on her killer.
How did the stalker obtain the security system code for his victim's home? How did he steal her personal photographs? Police needed answers and they found them in the most unlikely of places.
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.
Janice Johnson was found dead at the foot of her stairs. Police in Nova Scotia had to answer the question: Was it an accident or murder?
In 1987, the death of Crystal Purcell was considered an accident. Then in 2001, Barbara Purcell called police to suggest that her estranged husband had killed Crystal.
A serial arsonist was on the loose in Washington, DC. Each of the fires was started with the same type of incendiary device. The perpetrator was very careful, and seemed to leave no evidence behind... but there were clues in the ashes, and it was up to forensic scientists to find them.
A married couple decided to escape the cold of winter with a mini-vacation in Key West. The wife went missing, and police searched every square inch of the island, they found nothing but a pair of sandals which might have belonged to her.
A 1995 fire razes the mansion of a Kansas doctor, killing two of her three children disturbing accounts from an ex-husband lead investigators to believe the doctor set the blaze herself.
Police are dispatched to the scene of a shooting, and discover the victim's husband is one of their own: a homicide detective who says his wife accidentally shot herself in the head.
An aspiring model turned up dead and the prime suspect was her boyfriend. When he was eventually cleared, investigators had to dig deeper to find the perpetrator.
A behavioral profile caused the Baton Rouge Police Department to search for the wrong man. They might not have made an arrest had it not been for a DNA picture of the suspect painted by a molecular biologist.
In 2001, Ginger Hayes and her infant son Nicholas were abducted during a carjacking and the crime had been reported by a witness within minutes of occurrence.
A woman who survived a deadly childhood fire sends police a letter charging that her father killed her mother 30 years ago.
The victim was a self-made man who never minced words. Perhaps he was murdered by a disgruntled client.
One investigator's quick thinking helps him capture a shoe impression made in snow before it melts away.
In 2003, Tiffany Rowell and three of her friends were brutally murdered in affluent Clear Lake, Texas.
No one in a residential community saw anything the day one of their neighbors was brutally murdered. Fingerprints found at the crime scene helped investigators to apprehend the presumed killer.
The body of a college co-ed was found on a farm covered with her own denim as well as the jeans of the killer.
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