COLUMBIA, S.C. - An Army trainee has been arrested after authorities say he boarded a South Carolina school bus with a gun Thursday and held the driver and elementary students hostage before letting them off the bus.During a news conference, Richland County Sheriff Leon Lott said the incident started at around 7 a.m.
near Fort Jackson, the U.S. Army's largest basic training facility, located in Columbia. The trainee, dressed in physical therapy clothes, "ran off post and escaped" with a rifle from the installation, Lott said.