Wasn’t he already in cuffs when they brought him across the street to the car?
Yup. But when did facts matter when the truth is right there?
The police did follow procedure (even with the knee-to-neck.)
EMTs were called before Floyd died.
George Floyd exhibited suffering from excited delirium syndrome (ExDS), or stress from merely being arrested. As such, the police could have laid him on the ground and he would have died anyway.