Robert L. Roberson III was scheduled for execution in Texas on October 16. He won a stay, but the case isn't over. He was convicted of the murder of his 2-year-old daughter, Nikki Curtis. The ...

As an expert on personality disorders, people often ask me about psychopathy. It seems everybody has had an ex, a boss, a neighbor or a relative who they suspect has traits of it. People are curious ...

A recent study has shed light on the brain structure differences associated with psychopathy—a condition known to be one of the strongest predictors of persistent violent behavior. The findings are ...