"He volunteered, believed in what he was doing, was joyful in his service to his country and people of Iraq." Kevin Barnes, father, to KSL-TV Barnes, of American Fork, was killed when his unit was attacked by insurgents using small arms fire. The 23-year-old Army sergeant was a member of the the 4th Battalion, 31st Infantry Regiment, 2nd Brigade Combat Team, 10th Mountain Division, at Fort Drum, N.Y.