The reason the hit was done in public was because it would look like an accident, or at worst, a clumsy police procedure. Not as if there is a shooting and then the messy problem of hiding and disposing of the body. Mr. Floyd had to go simply because the passing of the counterfeit $20, and being caught, would bring in the US Secret Service, which agency would immediately take custody of Floyd, move him to their facilities, and proceed to both grill him and offer him a "deal" if he exposed his sources. That would bring the whole house...