Underage drinking and alcohol abuse are to blame here.
Bullshit, kid screwed up and paid the price. He might have done the same thing sober if what his dad said was true about the houses being very similar, especially in the dark I'm sure. You've never walked up to the same make and model car as yours and tried opening the door by mistake? Its almost a psgwsp scenario but I understand how the kid screwed up and someone legally killed him because of it.
Anytime someone says 'underage drinking' it infuriates me, its irrelevant, there shouldn't be a drinking age.