I think this comment speaks for itself. I can't... there's nothing that I can add.
Well, just this, I guess. To the extent that teabag259's view represent those of many police officers, it kind of illustrates the problem we face. The outcome here was "sad," but it was, at the end of the day, the 12-year-old kid's "own fault" - in the minds of police officers. Doesn't matter that officers opened fire within a couple of seconds of arriving on the scene, or that officers appear to define any kind of motion at all as "reaching for a gun." So, if a police officer pops up at you out of nowhere, and screams at you - don't flinch, because that may be construed as "reaching for your gun," whether you have a gun or not, whether you were reaching for...anything, really, or not. Even if you're startled, scared, whatever; don't move a muscle, because the police officer is scared to death of the situation he is in, and he's quite possibly trigger-happy.
And of course, teabag259 just tried to elide the Breonna Taylor situation.