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.

Without a body, proving that someone has committed murder is difficult but not impossible. More than 500 no-body murder trials have been held in the United States, with a conviction rate higher than that of all murder trials.

In today's world, homicide detectives are expected to be jacks-of-all-trades: equally adept at chasing outlaws and identifying DNA evidence at the scene of the crime. But, in an overwhelmingly male-dominated field, Frances Glessner Lee, a Midwestern woman without a high school diploma, made contributions throughout the 1930s and 40s that earned her the moniker 'The Mother of Forensic Science.'

A&E True Crime speaks with Anne E. Schwartz, a former crime reporter for The Milwaukee Journal, who broke the story about Jeffrey Dahmer's arrest on July 22, 1991, about what it was like uncovering the life and murders of one of America's most notorious serial killers.

Christopher Bernard Wilder became known as 'The Beauty Queen Killer' during a frenzied 1984 spree, where he criss-crossed the U.S., luring young women into his fancy cars and dangling the promise of work as a model, if they would just allow him to take their photographs. Some took the bait. Others, he took by force.

For nearly two decades, Chicago faced a curious rise in the number of unsolved murders against women involving strangulation—all in certain areas of the city. We take a look at one of the unsolved cases and what police are doing to solve the string of murders.

Rickey Ray Rector always had a troubled mind—as an adolescent, he fought regularly with peers, and by 17, he was a career criminal. But over the course of four days, his disturbing behavior reached its peak when Ray shot five people with a .38-caliber pistol.

In a murder that shocked New York City in December 2010, Sylvie Cachay, a rising swimwear designer, was murdered at a members-only club by her unemployed boyfriend.

The idea that people have a right to defend themselves—even using force that would otherwise be illegal—harks back centuries to English common law, which formed the basis of the American legal system. We navigate the murky and still-evolving world of self-defense laws in the U.S.

We speak with Christopher Kuvlesky, an agent with the Investigative Services Branch (ISB) of the National Park System about what it's like investigating violent crimes within our vast national parks.