At peak efficiency Auschwitz had the capacity to 'get rid of ten thousand people in 24 hours,' as the SS Kommandant Rudolf Hoess would testify during the War Crimes Trials after WW2. Witness after witness, document after document produced irrefutable evidence of the crimes committed, and no witness was more shocking than Rudolf Hoess, who calmly explained how he had come to exterminate 2,5 million people.