Dateline

Two tenacious sisters investigate the mystery surrounding their mother's death.

The seemingly storybook romance between a football player and the homecoming queen ends in a death.

Friends and family fear the worst when a teenager training to be a pilot disappears over Montana.

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

When an Iowa woman is attacked while home alone with her three children, the confrontation turns deadly.

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

Intruders break into a family's home.

The mystery of a successful real estate entrepreneur killed by a car bomb spans nearly two decades.

During a weekend away, a longtime married couple goes on an afternoon hike that ends in tragedy.

Money and greed tear two close-knit California families apart.

A 64-year-old man is charged with murder after shooting two unarmed teenagers who broke into his home.

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

Authorities investigate multiple suspects when a vibrant young woman disappears on her son's fifth birthday.

Two young teachers fall in love on the eve of the 2011 earthquake and tsunami in Japan.

Detectives look into a couple's complicated past when a man finds his wife stabbed to death in their home.

A post on a social networking site changes everything about a case that put two men in prison.

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

After finding his wife and two children dead, a former Indiana state trooper spends 13 years trying to clear his name.

Authorities become suspicious when a pastor loses a second wife in an accident.

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.

Survivors of the Westgate Mall attack in Nairobi, Kenya, share their stories.

When a woman's remains are found miles from her home, investigators start digging into her past.

A man says he found his wife dead in the bathtub, but the woman's daughters suspect foul play.