Since we're on Page 7 and people continue to flood in to provide the same 3 points:
You cannot say that wasn't a mistake, when you weren't in the car. He himself said it was, so I believe him rather than someone who already dislikes him.
He did something bigger than the average mishap, but you can't say he's any less of a person. You can't say he's not remorseful when you don't look at his positive things he does and only negative.