Police in Rio de Janeiro's police are searching for the gunman who shot a Brazilian journalist to death as he covered an anti-drug-trafficking operation.
Homicide division chief Felipe Ettore says the shooter might be among the nine people arrested or the four suspects killed during Sunday's operation. Ettore says police are looking for clues in video shot by 46-year-old Gelson Domingos da Silva.
Silva was shot in the chest while covering a police incursion into the Antares slum in Rio's west side for the Bandeirantes channel.
Amnesty International has condemned the police action, telling BBC Brasil that militarized police invasions of communities put at risk the lives of all involved, including journalists and residents.