[369] 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."[370] The Justice Department concluded "that no persuasive evidence can be identified to support the theory of a conspiracy" in the Kennedy assassination.[371]

Funeral
President Kennedy's family leaving his funeral at the U.S. Capitol Building
Main articles: State funeral of John F. Kennedy and List of dignitaries at the state funeral of John F. Kennedy
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.[372][373] 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,[374][375] with a quarter million passing through the rotunda during the 18 hours of lying in state.[374]
Kennedy's funeral service was held on November 25, at St. Matthew's Cathedral.[376] The Requiem Mass was led by Cardinal Richard Cushing.