Really important to point out, PTSD or not, that police are trained to do this shit in a lot of cases and in the rest of them are not trained well enough to not do this shit. Police have been lobbying constantly for decades to make sure they have little oversight or training based on real world application. They've also made sure that they have no legal obligation to protect anyone but themselves. Cops have been trained to be dangerous to the public. It's not an accident, it's intentional.