Journalist Brian Joseph tells us why sex trafficking is a complicated problem and how victims are further harmed by public perception and widespread corruption.

Sex trafficking has evolved in the 21st century to focus heavily on social media and financial mobile applications. And despite efforts to stop it, it's increasing globally.

Throughout the years, some murderers have turned to the popular classifieds advertisements website to find their victims. Here's why.

Learn about the early years of one of America's most infamous serial killers, Gary Ridgway, who was convicted of murdering 49 people.

Sydney Biddle Barrows, Rose Laws and more. The reasons some women live dual lives as madams/escorts and everyday citizens is varied, but almost always a challenge.

In the 1960s, an unidentified serial killer terrorized London sex workers. The Hammersmith Nude Murders remains one of Britain's most infamous unsolved crimes.

Peter Sutcliffe had the makings of a serial killer before he claimed his first victim and continued on a murderous spree that terrorized England for nearly five years.

Having endured a violent and abusive childhood, Aileen 'Lee' Wuornos sold sex to survive—ultimately killing seven men. We spoke with feminist writer Phyllis Chesler about her motivation to help Wuornos's case.