 Complete the following phrase:  After being liberated from the concentration camp, he was recognized as a persecutor of the Nazi regime VdN. He joined the KPD and organized the Apolda Criminal Police, and then took over the management of a dispossessed room operator. From 1947 to 1953, he belonged to the wrestling national team of the GDR. Since 1951, he worked as a sports and trainer in Berlin, Artern, and Leuna, where he trained young recruits for the GDR national wrestling team. His son Lothar also became a successful wrestler, who won a bronze medal for the GDR in 