Residents protest against the death of student Maria Eduarda Alves da Conceicao, 13, killed by a stray bullet inside her school during a shootout between police and alleged drug traffickers at Pavuna slum, in Rio de Janeiro, Brazil, Thursday, March 30, 2017. Military police in Rio de Janeiro say they are investigating a video that appears to show two officers execute the injured suspects. (AP/RSS Photo/Diego Herculano)