
Dateline NBC
The mystery of a murdered co-worker is considered solved until a stunning disclosure years later.

The mystery of a murdered co-worker is considered solved until a stunning disclosure years later.

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

Insiders close to an Idaho woman accused of murdering her husband speak out for the first time.

A man steals millions of dollars by conning numerous women and businesses over 25 years.

A 19-year-old's disappearance evolves into a monthslong homicide investigation.

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

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

When a small-town Alabama resident is murdered, rumors involving a local pastor begin to swirl.

Former DEA agent Andrew Hogan details his search for Mexican drug lord Joaquín "El Chapo" Guzmán.

A mother of three married to a missionary is found dead on Valentine's Day.

A man who was arrested and tried three times for the death of his wife talks about the case.

An intruder breaks into a lawyer's home, murders his wife and leaves him blind.

Detectives investigate when a scientist is murdered in his home.

An Air Force captain is shot dead leaving police to suspect his wife and her sharpshooter lover.

When a small-town Alabama resident is murdered, rumors involving a local pastor begin to swirl.

Former DEA agent Andrew Hogan details his search for Mexican drug lord Joaquín "El Chapo" Guzmán.

A mother of three married to a missionary is found dead on Valentine's Day.

A man who was arrested and tried three times for the death of his wife talks about the case.

An intruder breaks into a lawyer's home, murders his wife and leaves him blind.

Detectives investigate when a scientist is murdered in his home.