The serial killer seemed to be a well-adjusted adult. But his crimes included binding, torturing, raping and ultimately murdering 33 male victims, some as young as 15 years old.

Broderick killed her ex-husband and his new wife in 1989, but debate continues over the legacy of psychological abuse—and how it affected Betty’s actions.

For years, her name was treated as a shorthand joke: Lorena Bobbitt, the angry, crazy wife, a 22-year-old Ecuadorian immigrant who had cut off her husband John Wayne Bobbitt's penis with a kitchen knife while he slept in their Northern Virginia home. The June 1993 incident served as international tabloid fodder for months.

One in nine men experience severe physical violence at the hands of intimate partners. And when they do, their survival is uniquely challenging.

Why do so many killers—Jeffrey Dahmer, Ted Bundy and David Berkowitz to name a few—abuse animals before targeting people? An expert provides insights on how the two behaviors are linked.

Q&A with Christina Lindstrom, Impact Producer of "The Keepers" about the staggering sexual abuse statistics in the U.S., and what to do if someone tells you they've been abused.