Until your first question is verified with an answer, number five can not be stated as a certainty. Even if it was legal, that wouldn't excuse the police officers who acted like Pele and Apollo Creed. Something tells me those hood rats shouldn't have been in any position of authority.
Police Chief already stated it was an illegal stop. There was no evidence of "reckless driving". The victim has no record, priors or warrants and no contraband was found on the victim or the car.