 In August 1944, Rumkowski and his family joined the last transport to Auschwitz, and he was murdered there on August 28, 1944 by Jewish "Sonderkommando" inmates who beat him to death as revenge for his role in the Holocaust.This account of his final moments is confirmed by witness testimonies of the Frankfurt Auschwitz trials.Chaim Rumkowski was born on 27 February 1877 to Jewish parents in Ilyino, a shtetl in Vitebsk Governorate, Russian Empire.