It's more comforting to some people that every act be part of a larger plan, in this case "white supremacist domestic terror" than it possibly be near random violence. If the guy was targeting a specific person, hence the visits to multiple locations, and simply shooting whoever he found, that's scary because nobody can plan for and stop that. But if he's doing it to further a white supremacist goal, that's theoretically stoppable in a panopticon society like ResetERA.com favors because he would have been under surveillance.