George Zimmerman's DNA, Not Trayvon Martin's, Found on Gun

George Zimmerman's DNA and his alone was found on the gun that killed Trayvon Martin in February, according to DNA test results released by officials Wednesday.

The Florida Department of Law Enforcement found Zimmerman’s DNA was on the gun but not Martin's; it is undetermined whether Martin's DNA was on the holster.

George Zimmerman has acknowledged shooting Trayvon Martin, but has maintained that he acted in self-defense in the wake of a confrontation that left him injured.

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The DNA tests could play a role in the trial, allowing the prosecution to argue against self-defense since it now seems that Martin never even touched the weapon.

The defense could argue that Zimmerman shot before Martin could grab the gun.

The test results were the latest discovery material released by officials in the murder case, which has become a national flashpoint in race relations and gun laws.

Zimmerman, 28, is free on bail awaiting trial on charges of second-degree murder in the killing of Martin, an unarmed African American teenager, in Sanford, Fla.

Zimmerman was not arrested the night of the shooting in the gated community. After weeks of protests about that fact, a special prosecutor charged Zimmerman.

Officials cited missed opportunities by the defendant to diffuse the situation with Martin in charging him with murder; he has apologized to Martin's family twice.