 Padover saw to it that his story was leaked to the press so as to create sufficient uproar in the American public, and a purge of the city administration resulted, to expel former Nazis.Oppenhoff was considered a traitor and a collaborationist by the Nazi regime, and his assassination, codenamed "Unternehmen Karneval" ("Operation Carnival"), was ordered by Heinrich Himmler, planned by SS Obergruppenführer Hans-Adolf Prützmann, and carried out by an assassination unit composed of four SS men and two members of the Hitler Youth.The unit was commanded by SS Untersturmführer Herbert Wenzel, who was a training officer at Prützmann's Werwolf training facility at Hülchrath Castle, near Erkelenz; Wenzel arranged the necessary equipment and decided on methods.