In April 1944 Tzvi arrived in Budapest with forged documents he had received from his brother who was the commander of the movement. He prepared forged documents and distributed them. He worked as a photographer and lived in a bunker of the movement in the building of the Institute of Technology in Budapest. Later he moved to the bunker on Hungary Boulevard. Together with his friend, Róbert Offner, he registered in the fascist Arrow Cross Party and received official documents. As an Arrow Cross man he took part in the eviction of Jews from the Protected Houses.
Towards the end of the war Tzvi stayed at the “Glass House” on 29, Vadász Street.
In 1949 he made aliya with his wife, Magdalena Schlesinger. In 1952 he emigrated to Canada.
