Daily Kos: DNA Report does NOT support Zimmerman’s claim that

DNA results and Autopsy results would have to “prove” that Trayvon Martin actually “caused” Zimmerman’s injuries in order for for anyone, including a jury, to conclude Zimmerman acted in self defense when he killed an unarmed Trayvon Martin.  However, the DNA results and the Autopsy results do not support Zimmerman’s claim that Trayvon Martin “caused” injuries to his face or head.  Meaning, DNA results and the Autopsy suggest Trayvon Martin is not the “cause” of Zimmerman’s injuries. So Zimmerman’s alleged self defense claim might not fly with the jury since none of the forensic results suggest Trayvon Martin touched Zimmerman in any way, shape or form.

The Jury will see the DNA report shows that none of Zimmerman’s DNA was under Martin’s fingernails.  
George Zimmerman was damn near bald on the night he followed, search for, then found and killed Trayvon Martin.  In order for Trayvon Martin to grab Zimmerman’s bald head tight enough to slam his head into the sidewalk over a dozen times, some of Zimmerman’s DNA would have gotten underneath Trayvon Martin’s fingernails.

Trayvon Martin caused his injuries.