The first wave of massacres Killing in the town began Process_start on 11 or 12 May 1941 , when a band of Ustaše led by Mirko Puk murdered Killing a group of Serb men and boys in a Serbian Orthodox church before setting Placing it on fire Damaging .

Puk was captured Conquering by British forces Military_operation in 1945 while attempting to flee Escaping to Austria and was extradited Extradition to Yugoslavia the following year , where he committed Killing suicide .