This actually isn’t that unusual. I was a cop in the Chicago area and visited my friend at her birthday party, which was being held in a private room in a bar. Since I was on duty, I told her that I couldn’t guarantee that I could make it, but I would try.

Its “incomprehensible” to you that a cop would shoot someone who is pointing a gun at them? This isn’t The Matrix; the cop can’t wait for the gun to actually fire, dodge the bullet, and then return fire.