William E. Caswell
Summary: physicist and Navy scientist who was a passenger aboard on the hijacked American Airlines Flight 77 that crashed into the Pentagon whose pioneering work in the days of FORTRAN and punch cards demonstrated the potential of computer algebra and made major contributions to quantum gauge field theories.
Cause of Death: Injuries sustained in a plane crash
Born: June 22, 1947
Died: September 11, 2001
Location: Arlington, Virginia