Notice no post crash fire. Did he realize he was running out of fuel, and pop the door preparing to bail? I also noticed he didn't attempt to adjust mixture or restart the engine in any way...which any pilot would do. But if you know the fuel is spent, no need to restart, as it won't run....
Pretty simple work for an NTSB investigator to track the last fuel receipt vs. any flights logged to check if there was much fuel on the plane.