I don't agree that a person who has a history of criminal behavior wouldn't be followed by someone who has a "sense" for criminal behavior. And then, if the person following is attacked, he can defend himself.
Honestly, for a 17 year old boy, he's got a LOT of criminal behavior in his past. A LOT. I don't know what he was doing that night, but with his history I'm willing to listen to GZ's intuition.
We've found out the reason he has been suspended a few times today. But, I have yet to see that he has ever been charged with a crime. Maybe I missed it? If so, please provide a link.