Officially, exiled Brazilian leader Joao “Jango” Goulart died of a heart attack in Argentina in 1976. But a Uruguayan intelligence officer doing time for drug smuggling is offering a different story. Expelled from Brazil after a 1964 coup, the leftist president may have been poisoned on the orders of the country’s former military leaders. An autopsy is under way as part of a campaign by the Brazilian National Truth Commission to uncover crimes by past regimes. The investigation is a bold move for the commission, which only began its work last year, and could mark a new era of openness and honesty between Brazil and its neighbors.