IMO, she's guilty. This doesn't sway me at all. Seriously, I have seen footage of people searching open fields, and they walk in lines very close together, because it is EASY to miss remains. This isn't an open field, and it isn't simply a wooded area, either. Orlando was built on swampland. There are trees, vines, brambles, palmettos, etc. (maybe even Kudzu, which I believe can grow 12" a day), there is dry ground, muddy ground, standing water, and holes everywhere, and also lots of rain. Now add in numerous tips called in on a daily basis. Meanwhile, Casey could have told where she was at any time.
Lanie