Is it possible the pilot was attempting evasive maneuvers because of an incoming missile?
90 degrees left is interesting. Would seem a mid plane explosion the body would continue straight for a portion. TWA 800 I believe picked up speed before tumbling back to earth from my recollection.
The 360 degrees is apparently a spin.
I don’t think this looks like a hijacking, either bomb or mechanical failure.
Not being a pilot or engineer, I will leave it up to the Aero experts to figure this out but without a distress call, I’d bet on the explosion, terrorism or accidental.
I originally thought the same, but a freeper pointed out that a bomb in the tail could have the effect of those turns. It definitely sounds plausible. It looks like they may have found the debris and hopefully the black box. Looking to get some definitive answers on this.