Believe me they'll try. I beat my case and when I got pulled over for suspended license my bond was 25 grand instead of a personal recognizance walk out, AFTER the state brought up my "past" despite acquittal, spent 2 weeks in max in CCDOC division 11. Everyone laughed but not surprised when I told them I was in Max for a traffic violation..My understanding is that he's never been convicted of anything, only charged.
So they won't be using that.
Ever read or hear about the book Courtroom 302? A very true accounting of the way things really are in CCDOC and it's Just Us system.
COURTROOM 302
They'll also use any dirt on Trayvon as well...