And I suspect, based on their behavior: Pandora and the Sorceress...
TaKo suspects Pandora because Pandora suspects TaKo ;) And, by the way, Pandora also suspects the Sorceress. Because the theory about the murder committed by the confectioner that night looks strange:
with zero facts and logical arguments
I think everyone here is thinking - "Oh, they're going to kill me! They're going to betray me, oh no!"