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SANFORD (CBSMiami/AP) — Testimony is scheduled to get underway Tuesday in the trial of a man who shot at former neighborhood watch volunteer George Zimmerman in a case of suspected road-rage last year.

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Matthew Apperson is charged with attempted second-degree murder trial.

Zimmerman told officers he had been driving in the Orlando suburb of Lake Mary when Apperson got behind his truck, yelled and fired a gun at his car a short time later, leaving a bullet hole in a window.

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A police report says Apperson had a fixation on Zimmerman.

Zimmerman was acquitted three years ago in the fatal shooting of Trayvon Martin, an unarmed black 17-year-old. That case sparked protests and a national debate about race relations.

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