Someone dropped my Macbook Pro by accident but the screen is now broken what should I do?

It was my stepmothers nephew he is 26 on his birthday he dropped my Macbook Pro. When he dropped it I asked him was the computer ok he said yeah. And I didn't think nothing of it because my case on it wasn't broken. It was a plastic snap on case. He dropped it in a basement which has concrete under the carpet. So since I didn't think nothing of it I kept playing the xbox kinect. So later on that night I examine my laptop and it has a dent on the side and also the screen was loose and wouldnt stay up straight. So eventually my stepmom n dad seen it and I told them what happen. Later on the screen began to become looser. About 3weeks after I asked my stepmother for his number but she didn't give it to me. Eventually about 4weeks the hinges broke off and and the screen was no longer attached to the bottom case. I was visiting my dad and they had seen the damages that were done. So now we are trying to get him to pay for it. Now its almost 2 months later and she gives me his number. The damage is outrageous and the screen has a giant crack going threw the middle of it. And he is saying that he is only responsible for the hinges. Can't I take him to court for dropping my computer? An isn't he still responsible for all the damages he caused? That computer cost a lil over $2200. It was my graduation gift. I was going to college. It haven't even been a year since I had the computer. Just horrible. It cost $849 to get it fixed and he feels he is responsible for $130 to get the hinges fixed. I really want a new computer. Help me please.