Also you said he hit your camera, but didn't say if it was intentionally or not. Please elaborate on that part
I can upload a video to youtube because it unfroze now but it keeps freezing. The video file actually has him hitting the camera.
Ok, if he intentionally hit the camera and made you drop it, even if he meant to make you drop it or not he should still pay for it. If he denies it then make backup copies of the tape right now, and show him the tape.
Like I said though, breaking something of his won't get your camera payed for. The guy will also probably tell people what you did out of retaliation and they will take his side. You should take this opportunity to earn some cool points.
Also when you're talking to him stay calm, if he doesn't stay calm and gets all pissed and starts yelling with you speaking calmly, he will look like a major douche.