A dozen "good cops," including a superior stood around and did nothing as a handcuffed man was dragged around the jail and beaten.
https://thefreethoughtproject.com/watch-good-cops-do-nothing-as-fellow-officers-beat-and-choke-handcuffed-man/
https://thefreethoughtproject.com/watch-good-cops-do-nothing-as-fellow-officers-beat-and-choke-handcuffed-man/