New York Times: Raimundo Teixeira de Souza came to this sweltering Amazon outpost 15 years ago, looking for land. He bought 20 acres, he said, but more powerful farmers, who roam this Wild West territory with rifles strapped to their backs, forced him to sell much of it for a pittance. Then someone shot and killed Mr. de Souza’s 23-year-old stepson in the middle of a village road two years ago, residents said. No one has been arrested. In fact, the new police chief has no record that the crime was …