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Photo by: Joe Burbank

Judge Debra Nelson asks attorneys to project an animation image while listening to testimony from forensics animation expert Daniel Shoemaker during George Zimmerman's trial in Seminole Circuit Court in Sanford, Fla., on Tuesday, July 9, 2013. Mr. Zimmerman is charged with second-degree murder in the fatal shooting of Trayvon Martin, an unarmed teen, in 2012. (AP Photo/Orlando Sentinel, Joe Burbank, Pool)

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