Thank you to John Tomasetti for contributing this image that he took with a Poloroid camera while working at the airport. John states that the pilot defected and managed to fly right into Miami International without being detected by national air defense units and that the airport had Air Force fighter aircraft on the field.
This aircraft is almost identical to a hijacking to MIA in 1991. The photo is at: http://www.pbase.com/donboyd/image/59147626at the time.