Dateline 24/7 schedule

The Valseca siblings' lives are changed when their father is taken hostage in an orchestrated abduction.

The disappearance of a 20-year-old honors student causes her family to fear the worst; decades later, the mystery is solved.

A wife and mother survives an attack in her home and a shot to the head; authorities search for a motive.

Computer antivirus pioneer John McAfee -- who remains a person of interest in a murder investigation -- discusses his new business and why he decided to stop running from the law.

When one woman breaks off her relationship with a boyfriend she says abused and stalked her, he moves on to something even worse.

A beloved former firefighter is found dead in his garage; a neighbor's home security camera may provide answers.

When a scientist is murdered in his home, detectives try to figure out why his wife and son were left unharmed.

The disappearance of a young woman from Bend, Ore., leads to an intense manhunt after the suspect embarks on a two state crime spree.

Police initially suspect natural causes as they investigate a man's death, until they learn about an unconventional love triangle, which points the investigation in a new direction.

The investigation into the death of a pregnant woman just months after she wed her high school sweetheart reveals secret lives and feuds.

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.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

Melissa Oxley wakes up to find her husband, Ben Oxley, has been shot in the head.

When 18-year-old Anjelica "AJ" Hadsell disappears, the investigation into her inner circle reveals a sinister betrayal; featuring interviews with AJ's stepfather Wesley Hadsell and two of her friends.

The missing-persons case of 12-year-old Jonelle Matthews in Colorado remained a mystery for more than three decades until detectives narrowed in on a suspect whose bizarre behavior after her disappearance hinted at something much more sinister.

After the cause of the death of Stacy Feldman in her Denver home is ruled as undetermined, friends and family join forces to piece together what happened; insiders close to the case speak out about the seven-year battle for justice.

When a young woman is found dead near a soccer field in Indiana, detectives try to piece together a puzzle that leads them to an unexpected suspect.

A young Tennessee woman mysteriously vanishes and misses her family's Thanksgiving dinner; determined to track her down, her family takes matters into their own hands, pursuing every digital clue she left behind.

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.

When a young woman finds out that her boyfriend might have shot and killed a college football player out of revenge, she struggles with coming forward to officials, fearing she could lose her life.

The residents of a glamorous resort town are shocked when a well-known woman from a prominent family is found dead in her home.