Who is Malcolm S. Pickering from Line of Fire and what is their importance?

Malcolm S. Pickering is a Second Lieutenant and Marine pilot. He is the son of Fleming Pickering and known as Pick. He is twenty-two years old and heir to a shipping and hotel fortune. Pick is assigned to the Naval Air Station at Pensacola where he delivers Wildcats to different bases. Pick learned the hotel business by working in different positions in the family hotel business. The Marines want to use him as a mess officer but General McInerney, a friend of his father, intervenes and he becomes a Marine aviator.