Retired U.S. Army 1st Sergeant Osman Danquah conducts a press conference with, Imam Syed Ahmed Ali and retired U.S. Army 1st Class Jameel Sabree(not pictured here) at the Islamic Community center of Greater Killeen where U.S. Army Major Nidal Malik Hasan attended prayer services on November 9, 2009 in Killeen, Texas. US Army Major Nidal Malik Hasan, 39, a psychiatrist and specialist in combat stress, allegedly killed 13 people and wounded 42 in a shooting rampage at Fort Hood and is said to have acted alone by investigators and no motive has been established.