At 8:46 am yesterday my riding partner hit a deer and went down. I went to pick up his bike and do a half way investigation with a couple other MC riders. It appears he hit the deer just in the middle of the deers shoulder, the deer was knocked back to the right side of the road in the ditch, ( Dear had crossed from the right, ) point of impact is clear on the road, the bike then stayed upright for about 15 more feet. After discussing with my freind, it appears he lost control when the front fender that was broken during impact rolled down getting under the front tire causing a immediate loss of traction and the resulting crash. The signs on the fender support this too. It also appears that he had the rear tire locked and sliding and when the front tire slipped he let off the brakes quickly causing the bike to high side, flipping him off to slide on the pavement..My buddy now has a broken shoulder, torn rotator cuff, fractured hand and some road rash..He is recovering quite nicely and will be home in a few...Just sharing for the learning experience..