Most likely by cops
Most likely you’re wrong.
Looks like snipers attacked before the storm troopers kicked in the doors.
Typical police state MO.
So what they murdered a bunch of low life bikers. They probably have smoked marijuana at some time and deserve to be slaughtered. Toss a few grenades in the baby's crib just because they know they can get away with it.
Nazis and they don't even know it.