Of the twenty-three Brazilian policemen interviewed in depth for this landmark study, fourteen were direct perpetrators of torture and murder during the three decades that included the 1964-1985 military regime. These "e;violence workers"e; and the other group of "e;atrocity facilitators"e; who had not, or claimed they had not, participated directly in the violence, help answer questions that haunt today's world: Why and how are ordinary men transformed into state torturers and murderers? How do atrocity perpetrators explain and justify their violence? What is the impact of their murderous deeds-on them, on their victims, and on society? What memories of their atrocities do they admit and which become public history?