Á woman claims self-defense in the stabbing death of her fiancé; her daughter -- who witnessed the crime scene at 11 years old -- tells her story.

48 Hours

What Angelina Saw

The double life of once prominent lawyer Alex Murdaugh and his stunning fall from grace.

The Trial of Alex Murdaugh

The 1982 murder of Cathy Krauseneck and the case against her husband, Jim, who says he found her dead in their bed with an ax in her head.

The Brighton Ax Murder

Investigation Discovery continues its heritage of providing in-depth, compelling documentaries & series that challenge viewers to think about key issues that shape our culture and define our world.

Investigation Discovery HD

Investigation Discovery

Police officer Seth Perrault reports his wife, Amanda, had taken her own life -- just days after she made allegations of abuse against him.

The Death of an Officer's Wife

The investigation into the 1982 murders of two young women near the resort town of Breckenridge, Colo.

Last Seen in Breckenridge

Investigative reports on crime and justice cases.

Charged with killing his mother when he was just 14, a Missouri man out on parole after 23 years fights to clear his name, claiming the real killer is still out there.

S36 E9 | The Case Against Michael Politte