Hold on. My assumptions are not invalid: your seeming conclusion is to blame the sins of the child upon the father. That conclusion is not necessarily a logical one.
The parents' contribution to his character may or may not have been a positive one--we can agree or disagree. Scott is responsible for his actions, I think we both agree fully.
We've all seen good parents have children that choose to be monsters.
I stand by my belief that the Peterson's need prayer.
On balance, I think we agree more than we disagree.
I don't deal very well with people like Peterson's father who are in denial. It's a pernicious form of willful stupidity.