McClane confirmed, from investigating the roof, that Gruber had set it to be detonated with C4 explosives - and radioed Powell to warn him of the double-cross: "The whole roof of the building is wired to."On the way home, he stops in for a few drinks at his favorite watering stop - Nat""s Bar on Third Avenue [the legendary P.Through the open side door of the car, moving scenery can be seen.The worker is alarmed when he hears an unusual sound.He peeks through the door""s keyhole leading to the tender and locomotive cab and sees the two bandits trying to break through the express car door.The Joker first circled around "Harvey""s squeeze" Rachel and intimidated her with a knife as he told her another version of his facial scarring.