Barbara Walters gets more than she bargained for covering the Jean Harris murder case. Celebrity diet doctor Herman Tarnower is killed and his lover is charged with the crime. Barbara risks her career trying to uncover what really happened.

Why did Erik and Lyle Menendez murder their parents? Barbara shares exclusive details about the case, along with never before seen letters from Erik. And she uncovers a bombshell: a childhood message that could possibly grant the brothers a new trial.

Two baby girls are switched at birth and sent home to the wrong families. One mother suspects foul play, and a high stakes custody battle ensues. Barbara searches for one of the girls, now grown, whose life has taken a completely unexpected turn.

Music legend John Lennon is murdered in cold blood in front of his New York City apartment. Barbara Walters interviews his killer, Mark David Chapman, and reveals new details about the crime in the first ever TV interview with Chapman's wife, Gloria.

Jim Bakker finds fame and fortune as a televangelist but a sexual affair and financial scandal cause him to lose everything. Barbara Walters talks to Bakker's family and discovers the surprising truth about what Bakker is up to now.

Barbara Walters revisits the most notorious teacher student sex scandal. Mary Kay Letourneau has an affair with her sixth grade student Vili Fualaau. Barbara has a no holds barred interview with the two about their life together with their two daughters.

Actor Robert Blake discovers his wife Bonnie Bakley murdered. All roads lead to Blake as the killer yet he's found not guilty. Bakley's daughter Holly Gawron tells us why she thinks Robert Blake killed her mother and how she thinks he got away with it.