Inmates gather on the roof of a building and hold up a sign that reads in Spanish, “We want better treatment by the authorities.” (Guillermo Arias / Associated Press)
Federal police officers guard a door at La Mesa State Penitentiary. (Guillermo Arias / Associated Press)
A police officer passes by a burned car as he guards the La Mesa State Penitentiary perimeter. (Guillermo Arias / Associated Press)
A prison guard at the La Mesa State Penitentiary. (Guillermo Arias / Associated Press)
