Witold Pilecki - To prove Auschwitz was killing people, & not simply a labor camp, he forged papers,entered a ghetto roundup, & was sent to Auschwitz. He redistributed food to prisoners, trained them in martial arts, & passed news out. He & a few others beat up guards, stole their clothes & left the camp carrying the guards' stolen papers. They were in the woods for 3 days, til they met up with the Home Army & passed the info on. This was the first evidence of the existence of death camps.