Dr. Perry Inhofe, the son of Sen. Jim Inhofe, R-Okla., has died in a plane crash. Oklahoma City television station KOCO says a source close to the senator has confirmed his son was on board a plane that crashed near Owasso, Okla., on Sunday. The plane crashed in a wooded area about five miles north of Tulsa International Airport at 4 p.m., approximately 15 minutes after the pilot reported engine trouble.