Marco came to Arthur? Well, she doesn't find that too hard to believe. He's pretty new to all this, as she'd expect him to be. Somehow, that fact is a little comforting. But she doesn't look all that mollified.

"Yeah, but he hadn't finished it. So what, a thirteen-year-old asks you for a gun and help killing somebody, and that's it? You don't even blink?" York huffs out a sigh through her nose, raking her hand back through her hair. "Look, I'm helpin' the kid because he's already in deep and I don't wanna see him wind up as an ugly smear in some back alley. But come on, man, you could've kept him out of this mess."

It's probably unfair to lay all the blame on Arthur. Even if Arthur had tried, realistically, he probably wouldn't have been able to talk Marco out of it. The kid would've just gone off to get somebody else to help him. But it's frustrating, and Arthur's an easy target.