Dateline

The investigation into the death of a pregnant woman reveals secret lives and feuds.

A well-known woman from a prominent family is found dead in her home, located in a resort town.

A wife and mother survives an attack in her home and a shot to the head.

Over the course of a year, violent crimes are committed against two women from the same church.

Campus cops make a terrible discovery in a dorm room after a boyfriend's weekend visit goes horribly wrong.

Authorities in the Pacific Northwest investigate the disappearance of a young mother.

Authorities work to establish why a loving mother was brutally stabbed to death in her home.

Police suspect a serial killer when two women and their teenage daughters are murdered.

A woman seeks the truth when her whirlwind romance turns into a mystery involving government agents.

A chance encounter by customs agents leads to a break in the case of a missing mother.

Cops suspect a murder-for-hire plot when a realtor is attacked and left for dead at a home showing.

Investigators seek answers when a prosecutor and a district attorney and his wife are murdered.

The suspected killer of a California housewife claims it was a burglary gone awry.

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

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

Computer antivirus pioneer John McAfee discusses his new business.

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

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

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

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

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

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

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

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

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