I hope -- and doubt the body found is Susan. Where it was discovered looks too close to a road to have been there for a long time. The ring(s) don't look genuine, either (missing stone, color wearing off), plus it looks like Susan is wearing a wide band in the photograph. There is identifiable information that wasn't obliterated by the fire -- hair color, height and weight, approximate age, mole on the back.
Susan's disappearance seemingly into thin air has totally stumped me. And the quiet surrounding her case makes no sense at all. I don't care how "shy" Susan is, her family members needed to be front and center in finding her. I use past tense because so little was done, even in the beginning when the trail was still fresh.
Like, how can one function when a family member just disappears?