rio de janeiro brazil want arm trafficker allege weapons supplier rio de janeiro big criminal gang red command cv capture southern paraguay wednesday rio authorities say battle grow crime city marcelo pinheiro veiga know marcelo piloto arrest town encarnaci hide years paraguay neighbor brazil send arm drug ammunition favelas dominate rio large gang rio state authorities say statement wednesday police source decline name confirm gang cv u.s. drug enforcement administration participate arrest veiga want murder traffic criminal association statement say rio authorities seek combat rise crime seaside tourist destination early month arrest rogerio rogerio 157 avelino drug trafficker whose turf war former gang chief fuel spiral violence rio rocinha favela crime spike year police struggle maintain security gain make run-up 2016 olympics deep economic crisis spur big cutbacks spend police service brazil capture want arm trafficker paraguay