Police suspect a serial killer when two women and their teenage daughters are murdered in Maryland during the search for clues, it's revealed that a master thief is the key to solving the mystery.
After losing a hotly contested custody battle, a woman disappears with her 11-month-old daughter the child's father searches four continents for almost two decades before reaching an emotional conclusion.
The five-year investigation into the death of a retired corrections officer, who was killed by antifreeze poisoning, reveals multiple suspects.
When detectives track down the killer of a Las Vegas cocktail waitress and mother, it becomes clear that the investigation has just begun.
As detectives struggle to find leads in the murder of a college student, the perpetrator strikes again.
A look at the crimes committed by Charles Manson and his followers in 1969, including archival footage and interviews with those close to the events.
A thump heard by the children in a Carlsbad, Calif., home one summer morning is the first clue in a shocking mystery involving family secrets.
A wife and mother survives an attack in her home and a shot to the head authorities search for a motive.
After shedding hundreds of pounds, a popular kindergarten teacher goes missing investigators find a link between her weight loss and her disappearance.
Two tenacious sisters determined to fulfill a promise investigate the mystery surrounding their mother's death.
Sen. Lindsey Graham (R-S.C.) Sen. Tim Kaine (D-Va.) roundtable with Sara Fagen, Garrett Haake, Jeh Johnson and Tyler Pager.
An investigation into the murder of a beloved couple in South Carolina reveals a feud and divides a family.
Detectives look into a couple's complicated past when a man finds his wife stabbed to death in their home.
A man dies in a shooting incident after tempers flare in a confrontation in Montana's Glacier National Park.
When an Iowa woman is attacked while home alone with her three children, the confrontation turns deadly.
The case of Johnny Hincapie, whose conviction for the 1990 murder of a Utah tourist in New York -- a case that represented a tipping point in the city's law enforcement -- was overturned after 25 years.
Police investigate whether the murder of a South Florida attorney is connected to a web of fraud, betrayal and more than $1 billion in missing money.
A love triangle leads to years of stalking, property destruction, threats, and murder.
A car belonging to a missing man erupts in a blaze, leading to clues regarding his whereabouts.
A man who was recently acquitted of the murder of his ex-girlfriend's 12-year-old son tells his story interview with the victim's mother and key players in the case.