Great! Finally
I've been looking through old articles all morning! This ads to the mystery then, because if the skeleton was complete it stands to reason that she was wrapped up in the clothes (or the quilt), or some other wrapping as she decomposed and before being placed in the suitcase.
If of course, police are correct in that she was placed in the suitcase prior to dumping and didn't decompose in there.
To me,
it would be more likely that her body was stuffed in the suitcase, with all the clothes and the whole thing thrown under a house or in a shed and left for years before being dumped.