I was thinking, what if it wasn't the drink which did for No.2 towards the end of Once Upon A Time? What if No.2's death was brought about by simple heart failure, brought on by the pressure of work? It is certainly a possibilty, and one I had not considered before. And would let the Butler off the hook, because I always thought it was the Butler who did it, doctored No.2's drink.
Be seeing you