Impaired?
I would assume he had some familarity of that small layout? This is not Hartsfield or LaGuardia. Do they not have line of sight down the runway???
I feel terrible for all of this. Is the First Officer who survived the pilot? I heard there was an extra driver on board, prolly in the ljump seat, I would guess.
As long as human beings are going to fly airplanes, we can be sure that some joker is going to screw the pooch and cause a perfectly good aircraft to collide with the ground. It happens.
The FO if he lives, is going to have a fate worse than death, because he knows they screwed the pooch and got people roasted. That aircraft with a tank of fuel was NOT going to leave the GA runway safely. If they got clearance there, they should have refused it. The guy with the stick gets the blame, no matter who else did whatever.
Wrong runway, hit a hanger, belly flopped, caught fire, dead people. THATS IT. All the speculation going on in the media is just nonsense.