Really though, I do believe Agnostic007 when he says the coworkers are shocked about someone like the Carolina cop.
Well, that is a leap of faith I'm not willing to take.
But cops that are into throwing punches at handcuffed people, etc, is often something different (in my opinion) A cop like that will be triggered by the slightest backtalk, and he'd find it's easy to get away with becoming physical. He undoubtedly gets a rush by doing it, so it turns into an irresistible habit if he isn't stopped.
If these other "good" Cops are appalled of the other bad Cops' reactions... why do they spend ½ a day posting brick after brick informing us as to the circumstances that influenced that Cop in making those decisions. Specially when a "that is a terrible officer" would suffice. No preface or epilogue needed. "He fucked up, that was terrible". Instead, what you hear is the equivalent of "Joey's always had a bit of a temper... We all have those days... He wasn't getting laid because his wife is pregnant... He had a bit much to drink.. One thing led to another... Bang bang bing bing... But deep inside he's a good guy". BULL. SHIT.
I've always been of the belief that "don't do to others what you wouldn't do to your 5-year old".