The context of the following conversation is Quinn knew Ash well enough to know that they never would commit such a terrible crime.:
Quinn says I know Ash would not have killed that person intentionally..
The friend responds Well, so do I, Quinn. I'm sure whatever happened was a mistake..
Quinn responds No, I mean that Ash didn't kill them, period. It was just a careless accident. They fell off the roof when Ash was up there installing the antenna..
The friend responds So, you don't think Ash got mad at them and insulted them?.
Quinn responds Of course I don't. It was just stupidity. They were both a bit tipsy and unsteady on their feet..
The friend responds I understand. They didn't have any right to be up there in the first place..