Just a few thoughts along the refrigeration line of evidence:
First, kind of a poll -- never been sure, are most of you thinking refrigeration or freezing? (I kind of figure the freezing might not be possible because of space -- in a refrigerator I mean -- but not sure.)
Second: Think PsychoMom mentioned maybe the moving-out tenant might have some soft drinks, etc., still in the fridge -- and heck, for all we know, might have still had it stocked. (I'd sure probably put cleaning out the fridge for one of the last chores.) If perp used downstairs fridge, wonder if items had to be moved out to accommodate -- and would that have left some clues, in itself? On the other hand, if fridge was already cleaned out by moving tenant, I mean, actually cleaned, wiped down (which could have all been part of getting a deposit back or something similar), guess that would have left a pretty "clean slate" for evidence from the crime to show up on, maybe?
Finally: Fairly early on in the case, a friend of mine who works at a Macon motel not particularly close to the apartments told me that LE came by, asking the motel folks to be on alert for any unusual odors, etc. Now I know that there was a similar appeal to the general public about the same time -- but I've always wondered if, maybe at least early on, LE was looking at motels as a possible murder/dismemberment/storage scene?