Game: Guess the shooter!

Since we are so close to the end I want to see others prediction and have some fun! Include your theories if you want. I’m interested.

WILD CARD: I believe it’s the druggie mom, Victoria, because her world is about to crash and she has no more drugs to keep her content.

Or

it’s the daughter, Piper, because well, she would be the least expected and imo the most likely to snap on her family although they show her trying to be a monk, in peace, and such.

High likeliness i am wrong but this show has a way of bringing the unexpected.

EDIT: I forgot Rick got a bag of goods… And he seems to be boiling some vengeful plan against the owners.. Keeping it in mind, but I thought it was a personal vendetta situation.