All the more reason NOT to kneel on his neck for 9 minutes.
Either the need, or the "advise-ibility" of it.
He was clearly inebriated or drugged.....also combative....I have no issues with constraining such an individual. How that was done is within the law.....the duration could be an issue as has been in the past.
This cop was a bad egg, and he was let go amongst the public to continue his behavior. The police knew/know what is in his record and it is going to come back to bite them. They are responsible for allowing him to interact with the public. This guy would not have past the psych to enter the service much less the police force.