Arnost Kleinzeller

Rudolf Vrba (born Walter Rosenberg; 11 September 1924 – 27 March 2006) was a Slovak-Jewish biochemist who, as a teenager in 1942, was deported to the Auschwitz concentration camp in German-occupied Poland. He escaped from the camp in April 1944, at the height of the Holocaust, and co-wrote the Vrba-Wetzler report, a detailed report about the mass murder taking place there. The report, distributed by George Mantello in Switzerland, is credited with having halted the mass deportation of Hungary's …