the conduct of all the police involved showed their disinterest in the wellbeing of those in their custody.
a knee to the neck occluded the airway and asphyxiated Floyd. maintaining restraint is only necessary until the person ceases to struggle and is clearly under control. the police involved seemed to be chatting while they immobilised him. they weren't considering what was happening to Floyd.
Floyd was treated as a piece of dead meat. no wonder he died.
