Psychologist gives insight into Ft. Hood shooting November 9, 2009 at 1:44 PM HST - Updated June 21 at 5:20 AM HONOLULU (HAWAIINEWSNOW) - Investigators are still trying to figure out what prompted an army psychiatrist to shoot and kill 13 people in Fort Hood, Texas. Officials say Major Nidal Malik Hasan enlisted in the Army twelve years ago and was scheduled to deploy to Afghanistan. Doctor Richard Sword is a psychologist who works with veterans. He joined Sunrise to talk about post traumatic stress disorder.