” Mostly peaceful FedEx driver.... “
You win the thread.
The concept of an attacker disguising themselves as a delivery driver really works. You carry a package in front of your body with a handheld weapon at the ready inside the package. Ring the bell, the door opens, the victim sees a package and then start shooting right through the package. If using an automatic pistol the package needs to be a bit larger so fired cases will have somewhere to eject and not jam the gun. This might be the beginning of a new political terror campaign??