Probably not necessary and I am not advocating violence but several times criminals have shot at each other within an apartment and the bullets penetrated the wall and entered the next apartment. Not always a “spent round” or “deflected ricochet” as some had little friction to slow them in the entrance and exit of the drywall. News stories showed neighbors point to where the bullets hit. Upstairs as well as next door holes.
My point: If the cops can’t get a clear shot away from bystanders outside, shoot inside or through the thin hollow front doors of most apartments. Wear body armor.
This bum is a terrorist and kill them you must. They are like ISIS and treat them as such!