yes Kulvertukas, having been watching pictures and reading for hours and hours bulkhead failure could not cause such events we already know, and I suspect that RPB is still in place.
There is a very large piece of right side fuselage which suggests that left aft side is in much smaller pieces, caused by initial destructive event on the left. Probably close to fuel tank. At least somehow pulverized and flying fuel had to get into passengers cabin. Left HS could have been ripped off by fuselage pieces that dislodged the whole HS structure during which tailcone was separated.
Meanwhile leaking fuel mixed with air burned passengers.
That phase couldn't last very long as aerodynamic forces ripped tail completely off....
Thats just a speculation based on limited evidence we have.