CAMP PENDLETON, California (CNN) -- A U.S. Marine will serve no more than eight years in prison in connection with the killing of an Iraqi civilian, a Marine Corps spokesman said Saturday. Marine Lance Cpl. Robert Pennington was sentenced to 14 years' confinement but will serve no more than eight under a plea agreement, Marine spokesman Sean Gibson told CNN. Pennington pleaded guilty Tuesday to charges regarding the death of Hashim Ibrahim Awad, 52, in Hamdaniya, west of Baghdad. Pennington was among a group of seven Marines and a Navy medic charged in Awad's death. He and two other Marines...