Dateline NBC

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

When a dog trainer with celebrity clientele disappears, investigators track down a suspect with help from two witnesses.

Identical twins find their mother's dead body in their home in a gated community.

Intruders break into a family's home.

Questions remain in the case that gripped and divided the nation. Hear new details from key players.

Investigating the connection between an attack and a woman's disappearance in nearby Denver.

A young woman is found dead in Miami four days after her wedding.

The unbelievable murder of Carol Kennedy, a popular college professor, artist and mother.

A popular school superintendent is found dead in his western New York home.

The parents of murdered teen Skylar Neese discuss the night she disappeared.

When a mother of five is found dead in her bedroom, her family believes a crazed killer is to blame.

A woman is murdered and her son is left for dead; a neighbor suspects a stalker is to blame.

A man claims his young wife killed herself after she is found dead in her burning home.

Terrorism is suspected when a woman's truck explodes outside of the daycare center where she works.