article_snippet: In a separate case, another prosecutor is weighing up whether to bring charges against Rio de Janeiro's mayor for allegedly granting concessions to developers.
article_snippet: Rio de Janeiro's mayor pledged total transparency, with Brazil in the midst of an investigation into a massive corruption scheme at the state-run oil giant, Petrobras, which has rocked Brazil with near-daily revelations. '
article_snippet: Asked whether he had received a campaign donation from the developer, Pasquale Mauro, Rio mayor Paes said Rio mayor Paes didn't know and that in any case 'it wouldn't have been illegal.'