Dario Gabbai recalls his experiences as a Sonderkommando in Auschwitz II-Birkenau. He was forced to usher people into gas chambers, and then haul out the bodies, take them to the crematorium, and clean up the room for the next group of victims.This is the 24th testimony clip in the series 70 Days of Testimony: Leading up to the 70th Anniversary of the Liberation of Auschwitz.