Did the police know that though? No. They detained him because he used a counterfeit 20 dollar bill. Was he armed at the time? Also no. No one is worshipping George Floyd or defending his actions. They are recognizing this was an act of hate as no one should be knelt on and ultimately killed, unarmed.
Official autopsy ruled it a death by asphyxiation and a homicide and every expert ruled that the amount present in his system would not have killed him. Also, the way fentanyl kills somebody is that it literally stops signaling their body to breathe and they are unaware they aren’t taking in oxygen. Given that Floyd was screaming “I can’t breathe!” it’s pretty safe to say he was aware. Keep making shit up though.