alex polari wrote a letter to zuzu angel explaining the circumstances of her son's death. based on polari's letter and other evidence, angel reported the murder to ted kennedy, who revealed the case during a speech at the united states senate. angel also handed a letter to henry kissinger, who was secretary of state of the united states at the time. this letter was a translation of polari's letter. she also gave kissinger a copy of the twentieth volume of the book "history of the brazilian republic" by hélio silva, in which stuart's death is discussed. according to silva, among the reactions of the regime to the protests of the american-brazilian community were the removal and subsequent retirement of brigadier joão paulo burnier, who polari accused of being responsible for stuart's death. the minister of the air force, márcio de sousa melo was also dismissed.