Fass was responsible for the publishing in June of 1972 of the famous photo of the severely burned, nine-year-old Kim Phuc fleeing a US napalm bomb attack. The shot was taken by his AP colleague Nick Ut.
Some AP photographers had reservations about making the photo public, since it showed the severely injured Phuc running naked after she tore off her burning clothes from her body. The picture went around the world and earned Ut a Pulitzer.
“Horst Fass was a giant in the world of photo journalism. His exceptional dedication to tell difficult stories was remarkable and unique,” AP Vice President Santiago Lyon said.