Dateline

A man from Iowa is shot to death while sleeping in bed next to his fiancée.

After losing a hotly contested custody battle, a woman disappears with her 11-month-old daughter.

A DNA breakthrough in a decade old cold case leads two determined detectives to surprising suspects.

A woman who rose from poverty and became a successful criminal defense attorney is murdered.

A woman kills the man she suspects of being involved in an attack on her husband and young son.

When a luxury car dealer is found dead, detectives suspect one of his lovers.

Robert Durst's recent arrest in New Orleans and his whereabouts over the past 30 years.

A determined investigator works with a prosecutor in hope of solving a 20-year-old murder case.

Mysterious deaths occur inside a traveling commune, starting a decade-long investigation.

A foreign exchange student and soccer player's participation in a dangerous game leads to deadly consequences.

The disappearance of a 20-year-old honors student ends up taking decades to solve.

A matriarch's death leads to a prominent family from Texas being torn apart by decades of betrayal, greed and mistrust.

Suspicions arise when a man's wife dies in a house fire before a second tragedy claims his son's life.

When a woman is found murdered in her bed, her husband and her son accuse each other of being the killer.

Computer antivirus pioneer John McAfee discusses his new business.

A car belonging to a missing man erupts in a blaze, leading to clues regarding his whereabouts.

A love triangle is uncovered after a doctor ingests a lethal chemical.

A Georgia couple's romantic tryst takes a deadly turn. Evidence reveals a twisted plot.

Survivors of the 2004 tsunami that hit Thailand -- including Petra Nemcova -- share their stories.

After shedding hundreds of pounds, a popular kindergarten teacher goes missing.

A look through the eyes of more than a dozen survivors of California's largest wildfire.

Six survivors of the 2012 Costa Concordia shipwreck share their stories.

A young art student from Texas is found murdered in her bed with no sign of forced entry.

The 2006 poisoning death of former Russian spy and businessman Alexander Litvinenko.