Remains of Brazil's former President Joao Goulart exhumed to determine if he was murdered

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The remains of former Brazilian President Joao Goulart are being exhumed for analysis because of suspicions he was murdered on orders of the military regime that once ruled the country.

Goulart was toppled by a 1964 coup that installed the military regime that ruled Latin America's biggest country for 21 years.

He went into exile in Argentina, where he died in 1976. He was buried in southern Brazil.

His death was ruled a heart attack, but Brazil's Human Rights Ministry says there are suspicions he was poisoned. Agents of the dictatorships that ruled much of South America in the 1970s and 1980s cooperated in the torture and disappearances of each others' citizens.