Caradiru Prison

http://www.cnn.com/2010/WORLD/americas/08/03/vbs.carandiru.massacre/index.html

This article about a massacre inflicted upon inmates by guards in Brazil's largest prison in 1992. A riot broke out, and 111 prisoners were killed. Though many of the deaths were from inmates, many more were likely from police and prison guards. According to the article, 102 bullets were fired. The guards claimed that many were already killed and that they were acting in self defense. From the article: "In the archival images we collected, we see one inmate partially decapitated and another with a hole in his chest the size of a tennis ball. That doesn't exactly scream self-defense." The prison was notorious for its rough conditions, even violating many international human rights. It was demolished in 2002.