the fight originated before gilson campos da silva , 21 , a . к . a . " prins aritana , " a member of the ada ( " amigos do bairro " ) gang led other members into the " morro della mineira " ( coal hill ) to sell drugs , and ramirez dias , a central police official asked . the regional is controlled by neighboring gang comando vermelho ( northern command ) , which does not recommend of other gangster using goods in the region . comando vermelho subsequently started attacking the opposing members of it to protect their turf .
Ramos da Silva killed 11 people.