You just gave away who Joffrey’s murderer was. Those of us who’ve never read the books but have been watching the show did not know that yet. In the last episode that aired Joffrey died and we were having a bit of fun trying to figure out who did it:(
That was my guess. I don’t really know who the killer was. I haven’t gotten that far in the books. My guess was based solely on what I saw last Sunday night. Margery set the cup right in front of her. And in the preview for next week, she spoke of the death as fortunate. I would never spoil it for anyone else if I knew for sure.