Dallas Deputy Sheriff Al Maddox claimed: "Ruby told me, he said, 'Well, they injected me for a cold.' He said it was cancer cells. That's what he told me, Ruby did. I said you don't believe that bullshit. He said, 'I damn sure do!' one day when I started to leave, Ruby shook hands with me and I could feel a piece of paper in his palm ... [In this note he said it was a conspiracy and he said ... if you will keep your eyes open and your mouth shut, you're gonna learn a lot. And that was the last letter I ever got from him." In the note, Ruby claimed he was part of a conspiracy, and that his role was to silence Oswald.