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 ...

To do that, the psychologist administers a test — the PCL-R, or Psychopathy Checklist-Revised — designed to measure whether that inmate is a psychopath. This test has incredible power in the American ...

Test results found that a woman in her 20s, a person surnamed Kim, suspected of causing the deaths of two men by giving them drug-laced drinks, falls under psychopath (antisocial personality disorder) ...