Summary: A millionaire's wife runs off with an electrician, who runs through some of the couple's fortune. When the millionaire winds up dead, guess who the prime suspect is?

Summary: No one could figure out why a college student died in her bed - until a tiny spot launched an epic investigation.

Summary: A woman searches for a treatment for her child's rare disease.

Summary: An edited version of the 2003 documentary on singer Michael Jackson

Summary: A husband is dead from a gunshot, and a young widow is ensnared in forbidden desire.Keith Morrison reports.

Summary: Two childhood friends from South Boston take divergent paths - John Connolly was one of Boston's most celebrated FBI agents, and James "Whitey" Bulger became a notorious mobster. Connolly makes a deal with his old friend Bulger - Become an FBI informant, and his illegal gambling operation can continue without interference from the law. NBC’s Dennis Murphy reports on the story that became the basis for “The Departed.” Watch the full show here.

Summary: The truth comes out after a little boy's disappearance and murder; an author recalls a cold case he covered as a crime reporter on Los Angeles.

Summary: hen two relatives are killed, is a mob hit or a family secret to blame?

Summary: Josh Mankiewicz recalls the case of the 1974 Patty Hearst kidnapping by a little known group called the SLA - Symbionese Liberation Army. Mankiewicz talks with another man who claims he was held by the SLA and telling his story for the first time.

Summary: In an unexplainable case, an unassuming elementary school vice principal known for his kindness, was charged with killing his wife and children.

Summary: A popular, well-connected businessman dies when his car explodes. Initially, speculation leads to the mob but a big insurance payoff eventually since this cold case to Europe where one ex-wife resides.

Summary: Pregnant girlfriend of ex-NFL player is killed; is another woman to blame?

Summary: Darlene Ewalt was dreaming of an upcoming trip to paradise when she was brutally murdered in her backyard. Was a serial killer just getting started?

Summary: Investigating a string of violent crimes at a mall in a wealthy neighborhood; a lawyer reveals information about a real estate agent who went missing nine years ago.

Summary: Behind the scenes moments from Woodstock, including home movies and archival footage

Summary: Questions surrounding the murder of Bud and Melanie Billings; possible suspects and motives; one of their daughters, Ashley Markham, talks about her family.

Summary: A young woman working as an undercover police informant is killed when a drug bust goes bad; police finally solve the disappearance of an 11-year-old boy who went missing more than 20 years ago.

Summary: A mother's "accidental" death leaves behind clues that point to murder

Summary: No One could figure out why a college student died in her bed - until a tiny spot launched an epic investigation. Also, Dennis Murphy investigates the case of Maggie Locascio, a woman who was about to escape from her overpowering husband and begin a new life. But suddenly her life was cut short. The case saw a son versus his father in deciding who was responsible for the murder.

Summary: Police investigate what appears to be a fatal love triangle, arresting the victim's wife, although the victim's mistress failed to appear in court to give testimony.

Summary: Four years after a young groom vanished while on his honeymoon cruise in the Mediterranean, authorities are still searching for answers - originally aired on Dateline NBC in September 2005. An update on the case of financial adviser Marcus Schrenker, who attempted to fake his own death. .

Summary: Matt Lauer explores the controversial link between vaccines and autism, interviewing a British doctor whose 1998 study first suggested a possible link and a pediatrician and expert on vaccines who speaks out on vaccine safety in the U.S.

Summary: Insiders reveal what may have led NFL star Steve McNair to a life of danger

Summary: A Connecticut woman shares her story after being raped in her own home by a masked man, a crime that divided her community and the police force as well.

Summary: Dateline joins New York Times columnist Nicholas Kristof as he reports on one Pakistani woman's struggle for justice ; NBC’s Special Correspondent Tom Brokaw is traveling cross-country, 3,000 miles through 12 states, as part of a USA Network project. Travel with him to Cambridge, Md.

Summary: Alex and Derek King captured national media attention in 2003 when they confessed to killing their father. The boys, 12 and 13 years old at the time, were two of the youngest children ever to be charged with murder and arson as adults. Now, Keith Morrison as the first interviews Alex and Derek King have ever given. They speak about the baffling crime in their lives today.

Summary: Investigating the shooting of a young teacher and her philandering husband that left their families and neighbors divided.