Someone a few days ago, maybe a couple of weeks, that there would likely be no bruising developing when no blood was circulating a few moments after the punch he was said to deliver. So no marks from that. (???)
You got me digging through forensic texts. Found this FWIW:
It’d also be interesting to know if Zimmerman’s DNA was found. A complicating issue there would be whether the hands were bagged at the scene. Watching the details of the forensic evidence always fascinates me in these cases.