Just found this case. The husband is of course always (or in most cases) a person of interest, but it could have been different too. I wait for the dna tests to come back and keep an open mind for now.
Do we know whether only bones were put in the bag or a whole body (that disintegrated over time, leaving only the skeleton)? If there's no indication of decomposition having taken place in the bag, where was the body stored previously?
The bag will be as interesting to LE as the bones themselves.
DNA inside bones and hair can remain for a very long time, fingerprints not.
How was it established that the bones are many years old, and not a more recent death? Do we know that? I might have overlooked it ...