Witness to the 1990s deadly prison revolt documented bloody aftermath . Mazotto hopes photos , video , personal effects will help preserve history . the Carandiru Massacre travels to Brooklyn to see the evidence , meet Ronaldo Mazotto .
Witness to 1992 deadly prison revolt documented bloody aftermath . Ronaldo Mazotto hopes photos , video , personal effects will help preserve history . VBS travels to Brazil to see the evidence , meet Mazotto .