the fight initiated when gilson ramos da rosa , 21 , a . m . a . " farias aritana , " a survivor of the ao ( " tierra do bairro " ) gang lead other members into the " morro du mineira " ( miner climb ) to sell chemicals , rodrigo teixeira dias , a local army official responded . the region is controlled by rival gang comando vermelho ( red authority ) , this does not approve of other gangs trading drugs in the region . comando vermelho members started attacking the rival gangs of ada to protect their turf .
Ramos da Silva killed 11 people.