“According to Sgt. Todd Eby, the gunman walked in at about 4:20 p.m. with a pistol grip shotgun,” the Detroit Free Press reports. “Unprovoked, he just started shooting, said Eby, who was sitting at his desk when the gunfire erupted.” Never mind how the gunman got his gun. Set aside the shooter’s motivation. And forget about the security arrangements at the police station’s front door. Ask yourself this: were the four Detroit police officers wounded in the attack psychologically prepared for a shotgun-wielding madman? How many officers in the cop shop had ever thought to scope-out the station’s concealment or cover? How many sat at desks with their back to the door? As we’ve said before, armed attacks are nasty, brutish and short. If you don’t see it coming, chances are you’re too late. And maybe even then.