Defense official : Suspect had been a patient at the treatment center . President Obama to discuss issue with defense official . This is the deadliest on soldiers by a fellow soldier during Operation Iraqi Freedom . Five killed and two others wounded in action .
Defense official : Suspect had been a patient at the treatment center . President Obama to discuss incident with defense secretary . Attack is the deadliest on soldiers by a fellow soldier during Operation Iraqi Freedom . Five killed and three others wounded in incident .