I didn’t say there aren’t bad cops. IMHO, there are FAR too many of them loose on the streets. Too many Dirty Harry wannabes.
What I did say is that they don’t go blasting that Glock 23 (.40 cal) for the hell of it. Your examples bear that out, even though in each case you describe the officer should have either been severely disciplined or outright fired.
All I’m saying is that to cross the HUGE line into actually shooting someone to death for the hell of it is not a super-common occurrence. Of course it has happened, happens, and will happen. It’s not the norm.
Unfortunately, it is occurring all too often of late. The Seattle woodcarver and Jose Guerena come to mind as other recent examples.
I hope the late Mrs. Cook receives justice.