A former sports official in Brazil said he told the International Olympic Committee about corruption among organizers of the 2016 Rio Olympics several years ago — long before law enforcement officers raided the home of Brazil’s top Olympic official this week during a continuing investigation into corruption and bribery.
The police found the equivalent of $155,000 in cash at the home of Carlos Nuzman, one of the most influential members of the I.O.C. and a crucial architect of Rio de Janeiro’s successful bid to bring the Olympics to South America for the first time. Prosecutors in Brazil and France have said that victory, in which Rio defeated bids from Madrid and Chicago for the summer games, was tainted by a scheme to bribe voters.