Ouch...looks like he took a few nasty rolls. Do you know how fast he was going when he wrecked? And did he hit something or just go over a few times?
I'm on my second RZR and they are a blast, but you can really hurt yourself on them. The factory seatbelts are an absolute joke...in a wreck, they will barely hold you in place, so the first thing I added to my new one was a set of DFR 4pt harnesses...if I roll this one, my *** isn't going anywhere. The factory roll cage is also so-so...it doesn't take much to tweak them, or bend them up when you roll over...but they are better than nothing.