The tests by the Florida Department of Law Enforcement excluded Trayvon as a possible contributor for DNA found on the gun's grip but were unable to determine whether his DNA was on the other parts of the weapon.
DNA on the slide showed the presence of one male individual, but it could not be matched to anyone. DNA belonging to Zimmerman was also found on the gun holster, but Martin's could not be matched.
"There's certainly nothing new that proves the elements of the crime," said Randy Reep, a criminal defense attorney in Jacksonville. "We frequently see gun crimes with no DNA with people who didn't have on a glove. It's not a great surface for DNA, that's been my experience."
Whether Trayvon actually had his hand on the gun may not matter, Reep said. The crux of the case rests on whether Zimmerman can convince a jury that Trayvon was reaching for the gun, he said.
http://www.usatoday.com/news/nation...ins-dna-not-on-gun-that-killed-him/57808396/1