Retired US Army 1st Sergeant Osman Danquah (3rd R), Imam Syed Ahmed Ali (C), and retired US Army 1st Class Jameel Sabree (R) speak with the media at the Islamic Community center of Greater Killeen, where US Army Major Nidal Malik Hasan attended prayer services, on November 9, 2009 in Killeen, Texas. Hasan, 39, a psychiatrist and specialist in combat stress, who allegedly killed 13 people and wounded 39 in a shooting rampage on November 5, is believed to have acted alone by investigators and no motive has been established. Getty Images logo Getty Images 1 month ago

Retired US Army 1st Sergeant Osman Danquah (3rd R), Imam Syed Ahmed Ali (C), and retired US Army 1st Class Jameel Sabree (R) speak with the media at the Islamic Community center of Greater Killeen, where US Army Major Nidal Malik Hasan attended prayer services, on November 9, 2009 in Killeen, Texas. Hasan, 39, a psychiatrist and specialist in combat stress, who allegedly killed 13 people and wounded 39 in a shooting rampage on November 5, is believed to have acted alone by investigators and no motive has been established.