"...Never answer the door, never talk to the police, avoid them at all costs..."
He was a dumbass to open the door with no one visible through the peephole. Bravado got him killed by a rogue cop with poor training and probable bias of indeterminate origin (prolly a lib).
It is for this reason that I have steel security doors on my exterior doors. If I ever detect someone outside my doors - gumball lights or not - my first call after arming up is to 911. In any event, I will not willingly walk into a trap or a hornet’s nest, either potentially-deadly scenarios when those outside have the advantage.
Apartment buildings are inherently-dangerous to their occupants on a number of fronts. There’s a lesson in here for all from a number of standpoints.
Well if you don’t answer the door for cops they’ll kick your door in. So that’s not exactly an answer.