Sources say U.S. military donated $ 860,000 to the families of the dead and wounded . Police believe the gunman made two trips off his base during the attack . CNN 's Sara Sidner , Ruhullah Khapalwak , Mitra Mobasherat , Jamie Crawford , Barbara Starr and Larry Shaughnessy contributed to this report . A NATO official says the money is intended for the victims . U.S. Army Staff Sgt . Robert Bales could face the death penalty if convicted .
Sources say U.S. military donated $ 860,000 to the families of the dead and wounded . Police believe the gunman made two trips off his base during the attack . A NATO official says the money is intended for the victims . U.S. Army Staff Sgt . Robert Bales could face the death penalty if convicted .