In case you do not understand - him being drugged was no reason to sit in his neck until he died, which is the whole point of this bullshit case. To remind you - the cop was still sitting on his neck for more than two minutes after his collegue checked Floyd's pulse and said that there is none, not to mention that he had obviously lost consciousness.
There is no law which allows cops to kill druggies outside of actual attack.
Also, bro, it has been months. Where the fuck you were if you did not know that he had drug issues?