If it plays out that those killed were killed only by police, do you stand by your story? How about some lunatic going to a school board meeting and shooting the place up? Would you say people should not go to school board meetings, in case ONE of these meetings goes bad?
And yeah, I'm well aware that there were plenty of wanna-be bad boys a this event, but the cops can't be expected to parse them out at the scene.
As to your other point, if all 9 of the dead were using deadly physical force against another biker or a cop or an ordinary citizen, then yes, I'm glad they're gone.