Brazil's police officers conduct a search through the Rocinha slum for those responsible for the death of a fellow police officer in Rio de Janeiro, Brazil, Friday, Sept. 14, 2012. Diego Bruno Barbosa Henriques was shot and killed overnight Thursday while he and three fellow officers patrolled the sprawling Rocinha slum. Government control over the shantytown is seen as strategic as Rio prepares to host the 2014 soccer World Cup and 2016 Olympics. (AP Photo/Silvia Izquierdo)
