Hey, here's a thought. Suppose he poured cement powder on her lower body (as per rumors we've heard of cement on lower body), and put her in plastic, and added WATER (that would be FRESH water) and left her lying there so it could set?
Might that not cause some fresh water to get into her tissues?
Or suppose he INJECTED wet cement (which would contain fresh water) into her body? I know that sounds gross, but we have also heard rumors to that effect.
I think this whole fresh water thing is going nowhere.