Another issue is, if cops are well trained (supposed) and didn't get drunk (supposed) and so they can "shoot straight", why don't they shoot at the suspects' limbs first rather than "just to kill" them? Or is the training trained them to "shoot down any suspect first place no matter what"? I dunno ar.
Polices are not trained to shoot to disable. They are trained to shoot to kill. A lot of polices pull their guns many times during their career, but only a small portion of them actually fired their guns because of this reason.
"In the underground of crime, everybody has a secret."