IMO an autopsy would have indicated that for sure, if it were the case.
Therefore, I think it's safe to say that's not the case (unless the State is holding a lot more back than we know).
Still, it's a compelling detail. How is it that there are so many missing bones? Was he unable to gather them all, from wherever the previous hiding spot was? And why?
Did he purposefully spread her remains at Moffat, in and out of the shallow grave, in the hopes that LE would overlook what's missing?
That there's no evidence of decomp in Moffat is proof enough she was moved, but if LE has good evidence to show where else she was, oh, Barry.
No one else, man nor mountain lion, would go to such trouble, across time no less.
JMO