Rio de Janeiro's State Governor, Claudio Castro, says that the Brazilian city is dealing with a "real mafia", after three doctors, one of them the brother of a congresswoman, were killed in a shooting at a bar next to Barra da Tijuca beach. "We won't stop here. It's not because the bodies have been found that the investigations will end. They will continue to be expanded, we will go to the end so that we can fight all the criminal organizations," he adds. IMAGES AND SOUNDBITES