What a tragedy! The airframe looks relatively intact, but extensively fire-damaged. Although it may have been jammed, the main entry/exit door is shut. The fire must have spread rapidly and have been extremely intense. It is quite possible that the crew and passengers were disabled by smoke inhalation either prior to the aircraft coming to rest or soon thereafter and were unable to attempt an exit.
That's just speculation on my part. I did not know any of the victims; however, I mourn the loss of an accomplished group of people.
R.I.P.
Regards,
Grog