In 1965, Chicago boss Sam Giancana was jailed by Federal Judge William J. Campbell for his refusal to answer questions regarding the syndicate's activities. Campbell had blocked Giancana's plan to "Plead the Fifth" by announcing at the start of the hearing that Giancana would be granted automatic immunity for anything self-incriminating the gang boss might reveal in his testimony. When Giancana refused to say anything, he was charged with "Contempt of Court" and sentenced to be jailed "for the duration of the grand jury or until he chooses to answer." Three weeks after Giancana's arrest Humphreys was issued a subpoena to appear before the same grand jury. When Federal Bureau of Investigation (FBI) Agent William Roemer came to Humphreys' Marina Towers apartment to deliver the subpoena he was met at the door by Ernest Humphreys, who told Roemer that his brother had just left for parts unknown. When leaving the apartment, Roemer noticed a distinctly colored blue blazer hung on a chair.