Heiligenberg was born in Berlin , Germany , but moved to Münster soon afterwards . He then spent part of his early adulthood in Munich and Seewiesen before ultimately moving to San Diego , California , in 1972 . Heiligenberg was killed in the crash of USAir Flight 427 on September 8 , 1994 , while on his way to deliver a lecture at the University of Pittsburgh ( Leaders in Their Fields 1994 )
USAir Flight 427
USAir Flight 427
Walter Heiligenberg