@MassGuy, I don't remember all the details, but it seemed to me that in initial articles about the case, there was no mentioning of the "partial profile". It was a "partial match". Which might mean exactly what it says, "not a full match". 50% with each parent, approximately 25% between aunt/niece or grandma/grandchild, 12.5% between cousins, 6.26% between 1C1R, etc. So whoever left the DNA might have had a second cousin in CODIS. Which means nothing.
Recent articles use the word "linked" which is mystifying, but senseless. "LIinked" doesn’t tell us whether it is a "partial match" or a "partial DNA".
Partial DNA means, essentially "pieces of DNA with holes between them". If it is a 100% match between those pieces and someone in CODIS, it is impossible to interpret. No one knows what full DNA would have shown. But if it is a "partial match" between "partial DNA" and someone in CODIS, that means only one thing. That for sure, for sure it is not the same person. (Because some genes on this partial DNA are "foreign" to their CODIS match).
So - are you absolutely sure they said, "partial DNA"?