How is a 14 year old an idiot? He is not even an adult.
He's an idiot for not realising the potential of his actions. He's a little prick. But he is just a kid and, due to his stupidity, he's now in a situation where him and his family are going to be targets for every have a go vigilante from miles around. I reckon a lot of us if we're honest have committed atrocities or at least potential atrocities in our youth - I'm glad the internet wasn't going when I was young.