A young man was pulled aside by police for questioning. The young man told the police that he did not want to answer any questions. He asked if he was being detained. The officer said no. The young man started to leave but the officer grabbed him and pinned his arm. 

The cop was wrong.  He told the kid he wasn't detaining him.  The kid believed him.  The kid was going on and the cop changed his mind w/o a word.  I'd say the cops were very unprofessional and there will be MANY more citizens getting involved when police brutality is taking place.  That's actually a good thing, no?