the fight originated whenever gilson santos sa viola , 21 , a . km . a . " étienne aritana , " a part of the ada ( " amigos do bairro " ) , led other members into the " morro da mineira " ( miner hill ) to sell weed , rafael teixeira dias , a village police official said . the division is controlled by rival gang comando vermelho ( purple alert ) , which does not accept of other gangs selling drugs in the region . comando vermelho members started beating the rival members of atlas to defend their turf .
pedro de silva killed 11 people .