This was no big deal. The guy was dropping f bombs and looking for a fight while he was handcuffed. Really stupid... and guess what? He got a cop mad. Wow. Shocking! Terrible. Cops getting away with murder. Not. The guy wasn't injured. 
How many incidents of police brutality involve a perp being respectful and complying? Kids need to be taught not to argue and ignore commands of armed officers. It's just stupid people.  Far too many bratty disrespectful kids growing into adults when are bullies.