Dr. Ashley Hampton, a licensed psychologist who works in the prison system with both victims and perpetrators of violent crime, tells us about how the traumatic childhoods of Charles Manson, Aileen Wuornos and Richard Ramirez may have shaped their adult behavior.

We spoke to Rachel Jeffs about leaving the polygamous life behind, whether the FLDS could ever be brought down and how she feels about her notorious father, Warren Jeffs.

People are trading bitcoin for goods and services on the illegal marketplaces of the dark web, where the easy, instant flow of the cyptocurrency allows users to tap into their darkest natures--all from the anonymous comfort of their home computers.

The story of a California couple, Louise and David Turpin, charged with abusing their 13 children, is only the latest high-profile case involving parents accused of horrific acts.