So here's what this tragic story makes me think: these people were some combination of evil and stupid/misinformed. So how do "enlightened" people (like us, here on this board), get to them. If they're stupid/misinformed, how do we educate them? If they're simply evil, how do we remove their children from this harmful situation?
My gut reaction was a hearty desire that they be subjected to identical treatment to better appreciate the consequences of their actions. But that doesn't solve the problem, does it? How do we keep people from doing this to their children?