Well, to be honest, neither of the two groups in the ousting struck me as acting terribly suspicious... Satoshi and Boyue didn't ask any questions or even vote during the ousting, which could indicate that they didn't care about the outcome either way--which would make sense if they were wolves and knew that there were two sheep up for vote. Satoshi's comment about the wolves possibly getting revenge on Accelerator for changing his vote to Takeru also seemed kind of weird and could potentially be him trying to shift attention off of his clue.

Of course all that could easily be explained away, and Accelerator leaving the game actually makes Rika look a little suspicious to me too, but it's stuff to keep in mind, at least.