Jul 9, 2013 5:20 PM by NBC News
FLORIDA (NBC News) - An expert on gunshot wounds took the stand in the George Zimmerman murder trial Tuesday.
Forensic pathologist Dr. Vincent Di Maio testified Trayvon Martin may have lived one to two three minutes after being shot and could have moved his arms from an outreached position to under his body.
He also offered his opinion on the "contact shot" fired by Zimmerman.
"The muzzle of the gun was against the clothing, but the clothing itself had be two to four inches away from the body at the time Martin was shot," Dr. Di Maio said.
Dr. Di Maio testified that's consistent with someone leaning over another person.
George Zimmerman contends Trayvon Martin was on top of him, beating him, when he shot and killed the teenager.
He's pleaded not guilty to second degree murder saying he acted in self-defense.
Read more: http://nbcnews.to/12fChuu