January 3, 1967, while the date for his new trial was being set. President Johnson quickly issued an executive order to create the Warren Commission—chaired by Chief Justice Earl Warren—to investigate the assassination. The commission concluded that Oswald acted alone in killing Kennedy and that Oswald was not part of any conspiracy. The results of this investigation are disputed by many. The assassination proved to be a pivotal moment in U.S. history because of its impact on the nation, and the ensuing political repercussions. A 2004 Fox News poll found that 66% of Americans thought there had been a conspiracy to kill President Kennedy, while 74% thought that there had been a cover-up. A Gallup Poll in November 2013 showed 61% believed in a conspiracy, and only 30% thought that Oswald did it alone. In 1979, the U.S. House Select Committee on Assassinations concluded, with one third of the committee dissenting, that it believed "that Kennedy was probably assassinated as a result of a conspiracy. The committee was unable to identify the other gunmen or the extent of the conspiracy." This conclusion was based largely on audio recordings of the shooting. Subsequently, investigative reports from the FBI's Technical Services Division and a specially appointed National Academy of Sciences Committee determined that "reliable acoustic data do not support a conclusion that there was a second gunman." The Justice Department concluded "that no persuasive evidence can be identified to support the theory of a conspiracy" in the Kennedy assassination. Funeral Kennedy's body was brought back to Washington after his assassination. Early on November 23, six military pallbearers carried the flag-draped coffin into the East Room of the White House, where he lay in repose for 24 hours. Then, the coffin was carried on a horse-drawn caisson to the Capitol to lie in state. Throughout the day and night, hundreds of thousands lined up to view the guarded casket, with a quarter million passing through the rotunda during the 18 hours of lying in state. Kennedy's funeral service was held on November 25, at St. Matthew's Cathedral. The Requiem Mass was led by Cardinal Richard Cushing. About 1,200 guests, including representatives from over 90 countries, attended. After the service, Kennedy was buried at Arlington National Cemetery in Virginia. Personal life, family, and reputation The Kennedy family is one of the most established political families in the United States, having produced a president, three