May Larry Rest in Peace.
None of the following is intended to disrespect the victim nor to imply foul play, but as a grocery store stockperson myself, I agree with LurkingSleuther in the post above that some elements of this are unfathomable.
Since the autopsy showed no signs of trauma, that seemingly rules out a mortal injury such as a skull fracture that was caused by falling the 12 feet into the gap between the cooler and the wall. So if LM was not incapacitated by the fall, how did nobody hear any cries for help that he made? It's been said that the cooler's compressor fans were loud, but it's doubtful they were ear-protection-level loud, and AFAIK compressors run on cycles, which would leave periods of (relative) quiet.
Why was LM not able to shimmy up the 12-foot space by bracing his back against one surface and his feet and hands against the other? It's been said the gap was 18 inches wide and at 6 feet tall and 140 pounds, LM had a rather slim build so it's doubtful he could have become stuck in the space due to body size.
If the workers often used the coolers to access the storage area and sneaked back there for breaks, how would nobody up there have heard him? Or why didn't he remove some clothing, ball it up and toss it over the cooler to the other side to signal his presence?
Again, not to be insensitive, but how did nobody question the incredible decomposition odor that must have resulted? Or the insect infestation? The backstock areas of grocery stores sometimes develop an unpleasant odor, such as when the compactor hatch is opened or the grease traps are pumped, but it's not normal for them to smell horrible for days and weeks on end as this one must have.
Has there been ANY case where a body went undiscovered for seven years in a workplace, with probably dozens of workers coming in close proximity to it frequently?