[John yanks the other man's twisted arm higher to ensure the maximum amount of pain, and grabs for the Joker's other hand, as well. John's voice is a low snarl.]

You killed someone I love, and I saw what you did to her. I saw the way you beat her body, you bastard. She's the one who took me. She's the one who took Angel. You did that to her. You're the reason she turned into a monster.