A young, attractive hairdresser was sexually assaulted and murdered in her own beauty salon. The evidence at the crime scene didn't match any of the suspects and the case went cold for ten years.
In 1991, Dorothy Donovan was murdered in her Dover, Delaware home and police are skeptical when her son Charles Holden stated that she was murdered by a hitchhiker he had picked up.
In one of the most brazen crimes of the 20th century, the chairman of the Coors Brewing Company was kidnapped.
In 1986, Gary Dale Larson was stabbed to death in his Edmond, Oklahoma home and then the killer sexually assaulted Larson's girlfriend Janet Haynes.
In 1999, Patrick McRae was found dead in his Des Moines home and the crime scene was awash with blood.
In 2003, Tiffany Rowell and three of her friends were brutally murdered in affluent Clear Lake, Texas.
James Kenneth Elmen Jr. abducted Julie Estes, then 21, from the Southside convenience store where she worked in 1985.
Digital enhancement of security camera video shows that what appears to be a casual encounter is actually a forced abduction, leading to murder.
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.
In 2006, Darlene VanderGiesen received threatening emails and then disappeared. Tracking the source of the emails led police to the home of Daphne Wright, where they believe a murder was committed.
When an off-duty policeman was shot dead, his fellow officers were determined to solve the crime. They needed clues to find the killer and they discovered them in tiny fibres and an asthma inhaler.
In 1993, young mother Tammy Tatum was sexually assaulted and murdered in her Longmont, Colorado apartment.
Paul Gruber's daughter suspected something was wrong when she received birthday cards addressed from her father, but written in a stranger's handwriting.
Two suspects are linked to a murder by bloodstained boots and a gun, but the owner of the items says he has never met the victim.
A woman who was known to have suffered from depression took her own life. But her sister told police that she said if anything were to happen to her there would be a note in the china cabinet.
The body of a young girl was discovered on isolated farmland near Delano, California. She had no ID, but police found mailbox keys in the pocket of her jeans.
When two women went missing and were later found brutally murdered, police wondered if they were victims of a hate crime.
Paul Gruber's daughter suspected something was wrong when she received birthday cards addressed from her father, but written in a stranger's handwriting.
In 2007, the Florida mobile home of Effie and Michael Ratley catches fire. Michael heroically rescues his wife and infant son. A month later, his wife is found beaten to death in a bedroom of his parents' home.
Fifteen years later, DNA technology leads to justice for a murdered woman and her savagely beaten 4-year-old daughter.