Teen Pilot Kept to Himself By PAT LEISNER Associated Press Writer January 6, 2002, 12:10 AM EST PALM HARBOR, Fla. -- The high school freshman who stole a small airplane and crashed it into a high-rise building Saturday was a quiet boy who kept to himself and bartered for his flight lessons by cleaning airplanes. Flight school officials said Charles J. Bishop, 15, was well versed in the operations at National Aviation Academy, where he had been taking lessons since March 2001. Bishop was presumed dead in the crash, authorities said Saturday night. He was a year shy of being ...