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Expert: No Martin DNA on gun grip

SANFORD — Trayvon Martin's DNA was not found on the grip of George Zimmerman's gun, and Zimmerman's DNA was not found under the unarmed teen's fingernails, a law enforcement expert said Wednesday in testimony that prosecutors hope will refute the neighborhood watch volunteer's self-defense claim.

Zimmerman has pleaded not guilty to second-degree murder and says he shot the 17-year-old in the chest to protect himself as Martin reached for his firearm during a fight.

Judge Debra Nelson dismissed jurors without the prosecution having rested its case as it had hoped to do by day's end. Nelson won't resume testimony until Friday morning, giving jurors the Fourth of July off. They will remain sequestered during the holiday break.

Florida Department of Law Enforcement DNA expert Anthony Gorgone also testified that Zimmerman's DNA was found among blood on a shirt Martin was wearing under his hooded sweatshirt.

While cross-examining Gorgone, defense attorney Don West focused on the packaging of the DNA samples, suggesting it could have led to the samples being degraded. Gorgone told him that Martin's two sweatshirts had been packaged in plastic while wet, instead of a paper bag where they can dry out, and when he opened the samples they smelled of ammonia and mold.

Florida Department of Law Enforcement analyst Amy Siewert also testified that tearing and residue on Martin's clothing showed the gun was directly against him when it fired.

Prosecutors have sought to portray Zimmerman as a vigilante who profiled Martin as the teen walked home on a rainy night.

They called Gorgone on the same day they presented evidence that they say shows Zimmerman had aspirations of becoming a police officer and knew about Florida's "stand your ground" law. The law says a person has no duty to retreat and can invoke self-defense in killing someone if it is necessary to prevent death or great bodily harm.

Zimmerman had maintained in an interview with Fox News last year that he did not know about the law.

Prosecutors say he did have knowledge of it, however, because the subject was covered in a college class on criminal justice Zimmerman attended.

They called as a witness Alexis Francisco Carter, the military lawyer who taught the class. Carter described Zimmerman as one of his better students and said the neighborhood watch volunteer got an "A" in his class.

Another instructor, Seminole County State College professor Scott Pleasants, testified that Zimmerman had taken his online criminal justice class.

Pleasants' testimony via Skype from Colorado, broadcast live on television, was interrupted when he started getting inundated with Skype calls.

Nelson also ruled Wednesday that prosecutors can show the jury Zimmerman's job application to a police agency in 2009 and his application to ride around with Sanford police in 2010.

Zimmerman is charged with second-degree murder in the shooting death of Martin last year. Martin was black; Zimmerman identifies himself as Hispanic. The case sparked nationwide protests and touched off a debate about race and self-defense.

Prosecutors said Zimmerman's ability to understand criminal investigations and desire to be a police officer doesn't show wrongdoing, but is relevant to Zimmerman's state of mind on the night Martin was killed.

Defense attorneys believe the items are irrelevant and asked the judge not to allow them.

Defense attorney Mark O'Mara said Tuesday that if prosecutors start bringing up Zimmerman's past, the defense will dig into Martin's past, including fights. The judge had ruled previously that Martin's past fights, drug use and school records couldn't be mentioned in opening statements.

Expert: No Martin DNA on gun grip 07/03/13 [Last modified: Wednesday, July 3, 2013 10:48pm]
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