 At first, the ZWZ planned to poison the actor, but later decided to shoot him instead.When Roman Niewiarowicz informed the ZWZ that Sym would leave for Vienna on March 8, 1941, the resistance decided to kill the collaborator before that date.To carry out the assassination, the ZWZ selected the commando group "ZOM" of the Intelligence Department of the Warsaw-City District, led by Bohdan "Szary" Rogoliński.