Wow, what a lot of new info.
I've been considering where little Khandalyce was kept after she had been killed. A few people have suggested an empty building which would fit with the condition that her little bones were found in. Without being too graphic, a body is a difficult thing to move after a couple of days, so whoever did it, needed to know that she wouldn't be discovered soon after death. I wonder if she was placed in a pushchair/pram with the clothing on the top to "hide" her, hence why all was scooped together and placed into the case and why some show signs of degradation and decomposition.
Poor sweet little girl