An investigation into the origins and ideology of the rebel group and its bloody rise.
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Brazilians are protesting the killing of a 10-year-old boy in a police operation in a Rio de Janeiro slum, or favela, on Thursday. The Complexo do Alemão neighbourhood has seen a spate of police violence in recent days, which included three fatalities on Wednesday. The death of 10-year-old Eduardo de Jesus Ferreira on Thursday prompted protests as well as anger on social media.
Residents held a candlelight vigil on Thursday night, in protest against police violence.