The former president of Chile, Sebastián Piñera, died in a helicopter crash on Tuesday. The tragic event has plunged the nation into mourning and prompted an outpouring of condolences from leaders across Latin America. What Happened: The 74-year-old former president was flying in a helicopter that crashed into a lake in southern Chile. Piñera was pronounced dead upon the arrival of rescue personnel, while the other three passengers survived, reported Reuters on Wednesday. Although officials have not confirmed Piñera as the pilot, it was a known fact that he often piloted his helicopter, especi…