Dateline

A man who was acquitted of the murder of his ex-girlfriend's 12-year-old son tells his story.

The investigation into a Washington businessman's death leads to a North Dakota oil field.

A son uncovers a dark family conspiracy following a man's apparent suicide.

A Florida firefighter discovers a disturbingly violent scene in his darkened bedroom.

Police initially suspect natural causes as they investigate a man's death.

The investigation into the disappearance of a Marine's 19-year-old wife in the California desert.

The investigation into the death of a woman whose remains were found in her Frisco, Texas, garage.

A man's children stand by him as he deals with courts in upstate New York.

The FBI gets involved when a Virginia man's wife and son are kidnapped while in the Philippines.

The investigation into the poisoning death of a chiropractor leads to an unlikely suspect.

Against all odds, a young woman is found alive after an attack on her and a friend near Corpus Christi, Texas.

Co-lead investigator in the Steven Avery case Tom Fassbender discusses the case.

Michelle Hadley is exonerated after spending three months in jail for attempted forcible rape of her ex-fiance's wife.

Police investigate whether the murder of a South Florida attorney is connected to a web of fraud.

Two double homicides committed five years apart lead police to suspect a serial killer is to blame.

A former hockey player discovers his wife murdered in their home.

Police investigate when a 23-year-old woman goes missing from a shopping mall in Plano, Texas.

The investigation into the disappearance of a mother of three in Colorado reveals she was living a double life.

Investigators try to figure out why the body of a young mother turns up 40 miles from her home.

A detective promises to get justice for a victim whose body turns up at a trash facility.

A tight-knit Long Island family go to extraordinary lengths to find their missing sister.

When Cara Ryan shoots her ex-husband and accuses him of threatening to kill her, police question her motive.

A woman comes forward with the truth about the deaths of three other women.

A man claims to have shot his wife after mistaking her for an intruder.

Police investigate whether the shooting of a young woman in Utah was an accident or something more sinister.