In November 1963, Marcello was tried for "conspiracy to defraud the United States government by obtaining a false Guatemalan birth certificate" and "conspiracy to obstruct the United States government in the exercise of its right to deport Carlos Marcello". He was acquitted later that month on both charges. However, in October 1964, Marcello was charged with "conspiring to obstruct justice by fixing a juror Heitler and seeking the murder of a government witness Noll". Marcello's attorney admitted Heitler had been bribed but said that there was no evidence to connect the bribe with Marcello. Noll refused to testify against Marcello in the case. Marcello was acquitted of both charges.