NEW : Soldier Marquinta E. Davis arrested in Tennessee , charged with murder . Victim , not identified , was shot several times with .45 caliber weapon . Investigators found the motorcycle early Thursday morning at the home of his mother in Portland , Tennessee , the complaint says . Wednesday incident prompted officials to temporarily shut down the Army base . The shooting is ` ` not a random act of violence , '' an official says .
NEW : Soldier Marquinta E. Davis arrested in Tennessee , charged with murder . Victim , not identified , was shot several times with .45 caliber weapon . Wednesday incident prompted officials to temporarily shut down the Army base . The shooting is ` ` not a random act of violence , '' an official says .