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 ...

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 ...

A psychological assessment test often used to evaluate psychopathy in Canadian criminal cases is unreliable and prone to unconscious bias on the part of expert witnesses, according to research from ...

Gangbuk Motel Murder Suspect Confirmed Psychopath Police expand probe for more victims after suspects psychopathy diagnosis ...

A 22-year-old woman accused of drugging and killing two men in a series of motel encounters in Seoul meets the clinical ...