PJ2 -
Not sure if this is what you're meaning by "middle space", but the overhead bin structure in this photo is the middle-of-the-cabin structure. There's also the galley which we know about:
Thanks for the reply; i was meaning something that we could verify was from roughly row 7 (which i understand the galley was 2 rows in front of) to row 30-something. I'm wondering ~aloud that since we know we have debris from in front of row 5 and from row 42, whether we know if we have cabin contents from a row/area in the middle of the plane.
In the picture you cited, do we know that the overhead bin structure was from rows more towards the center-length-wise of the plane, or is that a different angle on the 42-J,K overhead bin structure?