the rivalry originated when lemos ramos da silva , 21 , a . w . a . " gilson aritana , " a resident of the ada ( " amigos do bairro " ) band led other members into the " morro da mineira " ( miner top ) to trade drugs , ricardo ramirez dias , a local policing official said . the region is controlled by smaller gang comando vermelho ( central command ) , this does not recommend of other gangs selling drugs in the regions . comando vermelho members started attacking the rival members of ada to protect their borders .
Ramos da Silva killed 11 people.