"I don't give a fuck what you were. Say what you want, but Steph didn't pull a knife on me when I saved her life, you miserable madman, and I'm sure she wouldn't have driven a bus to a wall. What does that say about you?" Jim said. "The old world is gone, and nothing you did then matters now, and last I checked, you tried to kill the people who came to your rescue." 
Jim turned to the stranger. "He'll do it. I have his gun right here, take it before he has a chance to."