He played for the Montreal Canadiens, New York Islanders, Chicago Black Hawks, and Kansas City Scouts. An original Islander, Gagnon recorded three points, including the winning goal, in the Islanders first win on October 12, 1972.
He played for the Montreal Canadiens, New York Islanders, Chicago Black Hawks, and Kansas City Scouts. An original Islander, Gagnon scored three points, including the winning goal, in the Islanders' first victory on October 12, 1972.