There are five stages in human decomposition and even as early as the "fresh" stage the skin has begun to rupture as the body fluids burst through; so if the determination of race is not anthropological and rather based on appearance definitive determination might be difficult early on. By the second stage, "bloat", the body would be filled wilh gases but yet recognizable as a human. By the "active" stage the body has lost so much mass that, in this sighting, a child would probably not have identified it.
Anyway, sorry for the TMI, my point in this regard is simply that I would suspect that there is already some determination as to whether this is LS or not based as I previously stated on accoutrements that were found on or near her, piercings especially of cartilage, and obvious dental condition, which might eliminate her.