Season 5, Episode 2: Cape Feare
Once again, Sideshow Bob is out to kill his biggest enemy, Bart Simpson. This time, he starts out by sending Bart threatening letters written in blood. When Bob is up for parole, he manages to win over the parole board, despite the large “Die, Bart, Die” tattoo on his chest. Later in the episode, we see that he also has tattoos on his knuckles that are a nod to the sinister Harry Powell, played by Robert Mitchum in The Night of the Hunter.