Kathy (Kate) Ann Jewell fled her home when her boyfriend, John Branden, raped and attempted to kill her. After that, he disappeared—and she spent years trying to ensure he'd never find her.

Stephen Port had a type: young, gay men, preferably unconscious while he raped them in his East London apartment. Careless police work enabled the serial killer to carry on undetected for years. Read more.

Josef Fritzl imprisoned his daughter Elisabeth for 24 years in a windowless basement. When she finally emerged in 2008, the story of his sadism shocked the world. Read about this shocking case.

Sex trafficking is big business. Globally, it generates tens of billions of dollars in profit every year. Here in the United States, it ensnares hundreds of thousands of victims. And while the stereotypical image of a trafficking victim is a foreign national, many of the exploited are underage American girls.

By the time Nassar was sentenced to 60 years in federal prison, his accusers numbered in the hundreds⁠—mostly athletes training and competing under the auspices of USA Gymnastics.

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 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.

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.

The amazing 2006 escape of a 14-year-old girl from Kershaw County, South Carolina, who had been kidnapped, raped and held in an underground bunker in the woods for 10 days.

Genealogical DNA databases are helping solve more cold cases. We explore why that could be problematic.