Hotel Homicides: It's the 1990s and a sadistic killer is murdering women in the hotels of Des Moines, Iowa. Can hard work and dogged investigation bring the killer to justice?
Clairemont Killer: As police hunt a vicious San Diego serial killer, reports of a man loitering outside a health club bring the case to a terrible conclusion.
Monstrous Act: Who killed 20 year-old Missy Grubaugh? Police have their suspects, but it's a late-night call to the victim that will bring the case to a close.
Innocent Bystander: When a drug dealer and his girlfriend are found murdered in their apartment, a bloody print leads investigators to a killer who defies belief.
Kill Now, Pay Later: When an arrest is made in the contract killing of a California businessman, police discover that's just the beginning of the story.
Silent Night: When a young woman is found murdered in her Oregon apartment on Christmas Day, investigators soon learn the terrifying truth about her killer.
Little Boy Lost: When the body of 11-year-old Christopher Alan Brown was found in the Flint River in 1985, it took almost 20 years for evidence of his murder to be found.
Little Boy Lost: When the body of 11-year-old Christopher Alan Brown was found in the Flint River in 1985, it took almost 20 years for evidence of his murder to be found.
When Evil Strikes: Detectives race to solve the murder of North Carolina factory worker Jonathan Blackwell, whose body was found two years after he disappeared in 2004.
Christmas Mourning: In 1988, Beverly Eller was found murdered in her home. Years went by before a piece of evidence surfaced that tied an unlikely suspect to the crime.
Christmas Mourning: In 1988, Beverly Eller was found murdered in her home. Years went by before a piece of evidence surfaced that tied an unlikely suspect to the crime.
Maritime Murder: Investigators scrutinise a ship full of suspects when a naval officer is poisoned at sea. Which of the many theories surrounding his death is true?
Maritime Murder: Investigators scrutinise a ship full of suspects when a naval officer is poisoned at sea. Which of the many theories surrounding his death is true?
No Mercy: When a mother of triplets is found dead in her Washington home, detectives piece together her final moments to reveal the surprising identity of her killer.
No Mercy: When a mother of triplets is found dead in her Washington home, detectives piece together her final moments to reveal the surprising identity of her killer.
Triple Threat: When a California mother-of-two is found strangled in her home, detectives question whether she was the latest victim of a fledgling serial killer.
Murder on the Menu: A stalker of a teenage waitress kills both her and her family. Five months later, another young waitress is dead. Why does the murder trail go cold for so long?
A Bike Ride to Murder: When the brutalised body of a San Diego girl was found in a canyon in 1991, detectives unearthed a shocking truth that no one could believe.
Mother's Day Murders: When a military wife and her two girls are found dead, police uncover many suspects, including a babysitter and an eyewitness who can't be trusted.
Wolf in Sheep's Clothing: Detectives uncover the shocking truth behind the disappearance of an eight-year-old girl who was abducted close to her home in California.
Blood Trail: A tiny clue leads investigators to the unlikely man behind the murder of 22-year-old Theresa Wesolowski, who was found stabbed 46 times in Germantown in 1999.
Pure Evil: In 1995, the naked body of a Chicago woman is found dumped on a Wisconsin highway. Investigators uncover the shocking truth behind the victim's tragic end.
Vanished in Reno: When a young university student is abducted from a friend's home in the middle of the night, the city of Reno, Nevada lives in fear of who might be next.
Little Boy Lost: When the body of 11-year-old Christopher Alan Brown was found in the Flint River in 1985, it took almost 20 years for evidence of his murder to be found.
Wolf in Sheep's Clothing: Detectives uncover the shocking truth behind the disappearance of an eight-year-old girl who was abducted close to her home in California.
Hometown Homicide: On 17 January 1980, in the town of Hemet, California, 67-year-old Elizabeth Crossman was murdered in her home. But it took 33 years to convict her killer.
Death of Innocence: Kenny Conrick was just eight years old when he was abducted and murdered in Gary, Indiana in 1979. Who would want this innocent child dead?
Vanished in Reno: When a young university student is abducted from a friend's home in the middle of the night, the city of Reno, Nevada lives in fear of who might be next.
Little Boy Lost: When the body of 11-year-old Christopher Alan Brown was found in the Flint River in 1985, it took almost 20 years for evidence of his murder to be found.
Manufacturing Murder: In December of 1997, the bodies of three men and a woman were discovered in a Florida manufacturing plant. Who killed them and why?
Killings in Kentucky: A respected vet, his wife and son are viciously gunned down in their home. Can detectives unearth the bitter truth behind this tragic crime?
Triple Threat: When a California mother-of-two is found strangled in her home, detectives question whether she was the latest victim of a fledgling serial killer.
Christmas Mourning: In 1988, Beverly Eller was found murdered in her home. Years went by before a piece of evidence surfaced that tied an unlikely suspect to the crime.
A Bike Ride to Murder: When the brutalised body of a San Diego girl was found in a canyon in 1991, detectives unearthed a shocking truth that no one could believe.
Mother's Day Murders: When a military wife and her two girls are found dead, police uncover many suspects, including a babysitter and an eyewitness who can't be trusted.
Wolf in Sheep's Clothing: Detectives uncover the shocking truth behind the disappearance of an eight-year-old girl who was abducted close to her home in California.
Blood Trail: A tiny clue leads investigators to the unlikely man behind the murder of 22-year-old Theresa Wesolowski, who was found stabbed 46 times in Germantown in 1999.