They never genuinely cared about the quality of their police, they just needed something to blame besides “a weapon manufacturer that targets teenagers with their marketing was allowed to legally sell two semi-automatic rifles to someone with a history of death threats and animal abuse, who immediately used them for the standard domestic homicide/mass execution of children”.
Their crime was embarrassing gun owners, not failing to save children.
Police were on the scene within minutes of the first gunshot at Sandy Hook and they breached the room a few minutes after that.
27 people were already dead, because it turns out that AR-15s can easily supply violence far in excess of what anyone could ever need for sport or self defense.
But his mother was a “responsible gun owner”, so he had free access to firearms and the moment he was armed, it was too late for someone.
Because the dirty secret is that even the “good guy with a gun” perfect case, when they’re seconds away, armed, competent (despite competence being voluntary) and not just fleeing with everyone else, they can’t intervene until shots have been fired.