Crazy that this is being downvoted. The cops were responding to a call about a armed gunman actively killing. If they respond slowly or tepidly and people die,

Crazy that this is being downvoted. The cops were responding to a call about a armed gunman actively killing. If they respond slowly or tepidly and people die, then they get yelled at. If they respond quickly and decisevly and they have been lied to, they get yelled at. They are not omnipotent.