http://www.myfoxtampabay.com/dpp/news/state/witness-martin-attacked-zimmerman-03232012 ORLANDO - A witness we haven't heard from before paints a much different picture than we've seen so far of what happened the night 17-year-old Trayvon Martin was shot and killed. The night of that shooting, police say there was a witness who saw it all. Our sister station, FOX 35 in Orlando, has spoken to that…