They didn't have any "awareness" of him in the first place. The fight was about Vay's character.
I don't really understand why Cressen walked into the bar, sat down quietly, then decided to use powerful Necromantic spells to kill strangers involved in a fight that was none of his business, before cutting through a wall and continuing his internal monologue.
It doesn't tell me anything about his character or his motivations.
I know roleplays are supposed to be fun, but a basic link between cause and effect will be useful for the other players.
Especially for me, since Cressen is now at the auto shop. I don't really want to start interacting with you if you're going to suddenly summon the Undead and destroy your surroundings.