Body cameras show us things like a nurse being cuffed for refusing to give a patient's blood to cops

Ah, the police body camera. It's brought us such disturbing hits as a Baltimore cop appearing to plant drugs on someone, an officer telling a recently shot man "fuck your breath" as he cried out for help, and the foot chase and death of a Chicago teenager. 
Well, thanks to one Salt Lake City police officer, we have another lowlight to add to the list: The forcible handcuffing and dragging of a nurse for refusing to hand over an unconscious patient's blood.
Yeah, it's as ugly as it sounds.&n