Marian Rotkopf
Marian Rotkopf - an informant from Bochnia, also roamed in Krakow. According to the accounts of witnesses, he was a very strong man, he walked with a riding crop and a dog. It was difficult, even impossible, to oppose him.
During November and December 1943, in one of the apartments in the Bochnia ghetto, almost at midnight, he found a Jew, Kuba Berkowicz, whom he ordered to dress and go with him. Berkowicz pleaded with Rotkopf to leave him:
You, sir, are alone and no one will know, I will jump out of the window, you know how I will end up.
Rotkopf was relentless. Berkowicz tried to convince him yet, said that he was registered with his uncle who lived at ul. Kowalska, and the policeman may look for him there and not find him, because no one knows about his hiding, but he refused again. Kuba Berkowicz was shot at [Montelupich] along with other arrested that night in Bochnia: Natan Pariser, Mańek Wiener, Dora Cukierówna and Lejbowicz with his wife. Another account shows that Rotkopf arrested two more activists of the underground organization from Krakow, staying with Dawid Rosenfeld in Bochnia. No trace of them is found.
After the liquidation of the ghetto, he went to Hungary in 1943 and lived there until 1944.
Witold Mędykowski "Przeciw swoim. Wzorce kolaboracji żydowskiej w Krakowie i okolicy"