Story highlights Matthew Apperson fired at George Zimmerman in May 2015 while driving down a street in Florida

He said it was self-defense, but jury determined otherwise

(CNN) A Florida man was found guilty Friday of attempted second-degree murder, stemming from a 2015 road rage incident involving George Zimmerman, a court spokeswoman said.

Matthew Apperson, 27, also was found guilty of shooting into a vehicle and aggravated assault with a firearm, Michelle Kennedy, spokeswoman for the 18th Judicial Circuit, said.

A jury deliberated for four hours. Apperson will be sentenced October 17.

The charges stem from an incident in Lake Mary, Florida, in May 2015. Apperson had said it was a case of self-defense and Zimmerman had threatened to kill him.

Zimmerman testified that Apperson followed him, flashing his lights and honking his horn. Apperson pulled up beside Zimmerman and shot at him, but the bullet missed, Zimmerman said. Shattered window glass cut Zimmerman.

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