the fight originated when gilson sud da silva , 21 , a . w . a . " gilson aritana , " a member of the ada ( " amigos do bairro " ) gang brought other men into the " militar sa mineira " ( ore cliff ) to sell dynamite , santos abreu dias , a local sheriff figure said . the district is controlled by rival gang comando vermelho ( red command ) , however does not approve of other gangs selling drugs in the state . comando vermelho later began attacking the rivals members of ada to protect their own .
Ramos da Silva killed 11 people.