OK, so let's assume the doorframe is part of the kitchen door frame. If so, they took the kitchen sink traps, possibly some of the ceiling (although that doesn't look as cleanly cut to me as the other areas in the house they obviously cut) in the kitchen, and part of the door frame.
Bathroom shows tub trap and sink and trap missing and although we see most of the floor missing there remains quite a few of those boards in the backyard after LE left.
There have been numerous reports that the "dismemberment occurred in the bathroom" and that makes the most sense to me. If we leave the bathroom evidence for the dismemberment - could we be looking at COD happening in the kitchen and/or her bedroom?
The kitchen sink, flooring (although it is not listed in the warrants), ceiling (not listed in warrants that I remember), and door frame (possibly from kitchen or bedroom I would assume). If Kitchen sink was used for cleaning after dismemberment (ie: washing down walls, mopping, handwashing, etc), it could be possible that the door frame from the kitchen to the (sideyard?) was the way they transported the dismembered body out of the home, thus leaving some evidence on the doorframe on their way out?
That would leave the unexplained hole in the kitchen ceiling (I think something fell through it vs LE cutting it out), flooring and wall in Zahra's bedroom, bed, bedding, bed frame and any furniture that might have been in her room. BTW, looking at s ome old video clips yesterday and saw pics of the new rental home that AB and his Mother were living. Out front of that residence was what appeared to be a headboard for a single bed. Thought that was odd, since he and EB had a waterbed and the only other bedroom in the house on 21st was Zahra's. Where did this headboard come from? Did someone they know give them a single mattress with a headboard to replace Zahra's old one?
The closet appeared relatively undisturbed after LE cleared the scene - which tells me the door may have been closed to the closet or at least no dna or forensic evidence was near that area.
What COD could involve wall sections, floor sections, and ceiling sections from the kitchen? (I am just trying to work backwards from what we know at this time)