Yes, for all the problems of racism, militarization of police, etc. the nature of the job is that police officers have to make split second decisions that can have awful consequences.

It is hard enough when the people involved are trained professional gunfighters, but even worse when it is just some average person who decides to pack a piece. There you are dealing just with competence at actual gun fighting, but even people who are so bad at just operating a gun that they shoot themselves on the way home from a gun safety class.

(Oddly, the first thing I learned about gun safety is go to the range, load the gun there, shoot all the bullets, don't carry or leave a loaded gun around)