I trusted my teenager but he let me down......?

Hi, I think what he did was wrong BUT he is a teenager who is home alone and that is the perfect excuse to through a party, however he is an adult and should be old enough to repect his parents house and wishes while you was away, I wouldn't make his life too hard if there was no damage to your house and I would make him realise that he has now ruined it for himself now as he wont be left alone again so he has bitten off his nose to spite his face, I can however understand that you feel upset as the problem you probably have the most is that he lied to you.