Dwight Schrute: “I know she didn't do it. It's never the person you most suspect. It's also never the person you…”
Dwight
I know she didn't do it. It's never the person you most suspect. It's also never the person you least suspect, since anyone with half a brain would suspect them the most. Therefore I know the killer to be Phyllis, AKA Beatrix Bourbon, the person I most medium suspect.