If that amount of weight suddenly broke to the rear, at that slow a speed, damn near instant stall, and she fell almost straight down.
Amazing he got the nose down and made a uturn, and got the wings level in that short a radius. I'm sure the co-pilot was standing on the throttles.
He needed too much more altitude to gain airspeed, but I'm sure he was fighting for it all the way down.
RIP.