It almost looks like he had a fire on the right side before impact...
One of my pet peeves in accidents is when the airplane isn't under positive control when it hits the ground. Stall/spins, loss of control systems/control surfaces, and similar things are reasonable explanations for an airplane hitting the ground in an unsurvivable attitude. But far too often the pilot forgets job #1 and focuses on troubleshooting or correcting or trying to make the airport. I'm not suggesting that's what happened in this case. I just hate to see fatalities in situations that should have been survivable.