To answer your question, Yashur, I'll start with my completely inaccurate table.

Based on this and today's results, it seems that, theoretically, we don't know who Charlie swapped Tox for – it could be Dave, Lars, Eddie, or someone else.

Fragment – Lars, Eddie, Salzman, and... someone else (well, Uncle Charlie, whom we forgot about yesterday, swaps for the next night).

As for Yashur, there doesn't seem to be much more information... but based on my calculations, psychology, and shuffles (oh, please, what logic could I possibly have!), he either has a very specific role or is a negative.