Looks like he got T-boned by a Buick. I sure hope he didn't lose his leg or his life.
Some good pics of the damage. I don't think there is more than a handful of salvageable parts.
http://cgi.ebay.com/ebaymotors/1987-Yamaha-Venture-Royale-1300cc-/221114114187?pt=US_motorcycles&hash=item337b6da08b