In what is probably totally par for the course at a Central Florida gun show, George Zimmerman made a happy appearance and signed autographs. The killer of teenager Trayvon Martin was seen smiling and shaking hands with visitors. The New Orlando Gun Show was originally supposed to be held at a larger venue, but the location's managers canceled after the backlash over Zimmerman's appearance. Show organizer Mike Piwowarski plans to sue for an estimated $330,000 in lost gun sales. #Florida.