As a German, the contrast in education and training for police is unfathomable. Yes, we still have a problem with some cops being Nazis, but cops don’t kill people because “I was scared” here. They usually kill them after an act of terrorism that killed a lot more people, or if they had a standoff for like 2h and the guy has a gun.
Which absolutely is the better way.
But ofc, banning guns is really helpful in the first place, because wouldn’t you know, banning a killing device rapidly decreases the amount of killings. Funny how that works. I would even argue it’s cause and effect and not just coincidental.