I heard that the left engine may have failed or the propeller wasn't feathering right. I also heard that if they had gone hard on the rudder, etc maybe they could have recovered but it went really fast before the whole thing was just too far gone. Damned lucky for the person with the dashcam and the driver ahead as the tail and it looked like part of the wing just bit it as it came down, could have easily torn up on the road itself but for the speed.
I'm wondering if the pilots didn't try to put all their effort into the other engine instead...some information about the crew will likely be forthcoming and telling.