Read here. (Remember: Clowns are creepy.)
Here is more about the clown and his buddies. Protesting is one thing. (I disagree with their stance, but hey if you want to be a hippie jackass, go ahead.) But, serial commission of crimes (and misrepresenting the teaching of my Church) is something else. Charge 'em. Prosecute 'em. Imprison 'em.