Lots of fingerprinting at a spar. Yes, C210s are getting on (and I shudder to hear some of the bucket-of-bolts 210s that I flew last century still on the airwaves) but did it just break up in normal conditions? Or was the aircraft in a position that the airframe was stressed beyond its design limits? The weather wasn't great up there Christmas Eve. What training did the poor pilot have? No weather radar of course. What commercial pressures (assuming it was an Air Transport operator) was the pilot under to fly a VFR aircraft that day over that route?
Hopefully the GPS will reveal some valid data and whatever the outcome of the investigation, lessons are learned.