An FBI agent was killed Wednesday during a live-fire training exercise, the agency said. Supervisory Special Agent Gregory J. Rahoi, 38, of Wisconsin, was shot Wednesday during the exercise at Fort A.P. Hill, a sprawling Army base about an hour south of Washington. (DC) Rahoi was flown to Mary Washington Hospital in Fredericksburg, where he later was pronounced dead, the FBI said in a release. Rahoi joined the FBI in 1997 and had served with the agency's Hostage Rescue Team for the past six years. Fort A.P. Hill hosts about 60,000 soldiers, sailors, airmen and Marines annually at the 76,000-acre...