"I denounce the loggers and the charcoal makers, and because of this they think that I should not exist," he told the crowd at the prestigious gathering.
Another apparent hired killing took place in the region on June 1 in Eldorado dos Carajas, a village less than 200 km from Nova Ipixuna. When onlookers tried to take the victim to hospital, gunmen stopped the car and shot him again. Some reports said the dead man was an activist, while others said he was a farmer with no connection to campaign groups or labor movements.
Brazil has a history of such dark events in the land around its valuable rainforest. A study released by Agencia Brasil in 2007 found a significant correlation between areas of high deforestation and those with high murder rates.