I have been looking through namus, and still can't find any strong possibilities with the age range and height/weight. Dang, this is one clever gal our CTL. I think this gal was a teacher, accountant, librarian, or nurse. Buttoned up. Everything nice and tidy at the scene; including that plastic sheet she had under her.
However, she might have left us a little bit of a clue with one of those tapes she had in her backpack. I did research on redheads (assuming she was a natural redhead), and it turns out the #1 state for redhead population in the U.S. is *west virginia*. And, we might recall that she had a Foxworthy "You be a redneck if...." tape in her backpack. Not trying to insult anyone in W. Virginia, but if to stereotype, I think W. Virginians might proudly claim understanding of that tape. I know it was popular for all sorts of folks in that era, but perhaps there is a connection to W. Virginia.
I realize this is a bit of a stretch, but who knows.
Amateur opinion and speculation