What well adjusted man murders his girlfriend like Mike Myers and proceeds to get into a John-Wick style shootout?
Provided police not simply lying, shorty knew what that breh was about.
"Pivot tables" You on a troll roll
Seriously.
This was a mild mannered accountant who found a gun in his pocket and fell from balcony to balcony where he accidentally started firing at random people and the cops. There was no way he could have exhibited any signs or clues of this kind of behaviour prior to this bout with "bad luck".