In Chapter 1 of its report, the Warren Commission asserted that "No direct or indirect relationship between Lee Harvey Oswald and Jack Ruby has been discovered by the commission, nor has it been able to find any credible evidence that either knew the other, although a thorough investigation was made of the many rumors and speculations of such a relationship."
Yet in his early 1990s book First Hand Knowledge: How I Participated In The CIA-Mafia Murder Of President Kennedy, former CIA operative Robert Morrow claimed that on October 9, 1962 CIA official Tracy Barnes told him that both Jack Ruby and Lee Oswald were members of Clay Shaw's "inside group." And Crossfire: The Plot That Killed Kennedy by Jim Marrs also stated the following:
"Beverly Oliver...was 19 years old at the time of the assassination and worked for the Colony Club, a stri-show club located next door to Jack Ruby's Carousel Club...Oliver...said that three weeks prior to the Kennedy assassination, she was visiting in Ruby's club. There she met a man whom Ruby introduced as `Lee Oswald of the CIA.' She later recognized Oswald when his picture was broadcast following the assassination.
"She also said David Ferrie was in Ruby's club in late 1963, in fact, he was there so often, Oliver mistook Ferrie as an assistant manager of the Carousel Club.
"A friend of Oliver's also knew of Oswald being in Ruby's club and spoke openly about itt. According to Oliver, her friend disappeared and she `decided it would be in her best interests not to say anything.'"