Who is George F. Hart from Line of Fire and what is their importance?

George F. Hart is a United States Marine. He was a police officer in St. Louis, Missouri where he worked on the Vice Squad. His father was a police captain. Before joining the force, he worked as a truck driver's helper at a brewery for three years. He is twenty-one when he becomes a police officer. He is injured while attempting an arrest and learns street fighting after returning to duty. When he enters the Marine Corps, he goes through boot camp at Parris Island. He is assigned to work for Fleming Pickering and is involved in the rescue mission at Baku Island.