Beckmann was killed during the first phase of the
Sobibor revolt, in which conspirators lured SS men to secluded locations and killed them covertly. The conspirators had originally planned to kill Beckmann in the Camp II storage barracks, but on his way to the appointment, Beckmann had suddenly turned around and headed back to his office in the administration building.
Chaim Engel volunteered to kill Beckmann in his office, after overhearing the conspirators discussing the situation. Engel went to the administration building with a
kapo named Pozyczki, and Engel stabbed Beckmann while Pozyczki restrained him. When Engel stabbed Beckmann, he shouted "For my father! For my brother! For all the Jews!" Beckmann struggled as Engel stabbed him, causing Engel's knife to slip and cut his own hand. Once Beckmann was dead, the two prisoners pushed his body under the desk, not having time to better hide his body. == In popular culture ==