I don't think there is any brutality issue here.  The guy ran in, made a clear disturbance - his intention was clearly to create disorder, not simply ask a question.  He refused to leave after standing up there asking his stupid ass question and rambling.  Someone looking to make a publicity stunt by acting like an ass is not expressing free speech.  Freedom of speech does not allow you to yell fire in a movie theater.  This is exactly that.