Backpack formed the idea the second night with his buddies. Or he just decided to do it so they can eliminate the actual psychic.
Remember, wolves knew they hit some sort of block or vest, so they were more than happy to go to the second highest threat that would give town a lot of info (that's not the cop obviously), the psychic... I guess?
I don't know, I really was trusting backpack and now I feel extremely betrayed. I'm baffled if he faked all of that anger with V.
so you think he softed to get psychic to come out?