The men running the incinerators called Sonder commandos will be sent into them soon so they cannot tell the world what is happening. Everything was done by the Jews. If you didn't do it, they would shoot you on the spot. You had no choice. They would see their own families going to the gas chamber and there wasn't anything they could do or say. I learned that when a group is gassed in the showers, not all the people are dead when they burn the bodies. Maybe they don't give them enough gas because we can hear the screaming coming from the crematorium.