Chromebook wont power on.

My client's HP 14a-na0023cl Chromebook got forcefully shut on his finger near the top of the Chromebook. After that, it wouldn't power on. He tried charging it and the Chromebook and it still would not turn on. When the Chromebook was shut it was at half to full battery. I am very new to computer repair so I don't even know where to start in trying to diagnose his problem. I attached some photos of the Chromebook if that helps:)