Man sentenced in road rage shooting involving George Zimmerman

FILE - In this Sept. 22, 2015 file photo, Matthew Apperson reacts to testimony from George Zimmerman during Apperson's hearing in Seminole circuit court in Sanford, Fla. Testimony begins Tuesday, Sept. 13, 2016 in Apperson's attempted second-degree murder trial. Authorities say he shot at Zimmerman during a traffic incident last year. (Joe Burbank/Orlando Sentinel via AP, Pool)

(CNN) — The man convicted of shooting at George Zimmerman in a road rage incident has been sentenced to 20 years in prison, Florida authorities said.

Matthew Apperson was convicted of attempted second-degree murder in September. In addition to the 20-year sentence, he was also given a 15-year concurrent sentence for aggravated assault stemming from the same incident, Seminole County State Attorney spokeswoman Lynne Bumpus-Hooper said.

George Zimmerman looks at the jury as he testifies in a Seminole County courtroom Tuesday, Sept. 13, 2016 in Orlando, Fla.  Matthew Apperson is accused of trying to kill  Zimmerman by shooting into his truck during a dispute last year. (Red Huber/Orlando Sentinel via AP, Pool)
George Zimmerman looks at the jury as he testifies in a Seminole County courtroom Tuesday, Sept. 13, 2016 in Orlando, Fla. Matthew Apperson is accused of trying to kill Zimmerman by shooting into his truck during a dispute last year. (Red Huber/Orlando Sentinel via AP, Pool)

The road rage incident happened in Lake Mary, Florida, in May 2015.

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. He was cut by glass from a shattered window.

Apperson gave a different account, saying he acted in self-defense and that Zimmerman had threatened to kill him.

Zimmerman became a controversial figure in 2012 when he fatally shot unarmed teenager Trayvon Martin. The case prompted national debates about the use of firearms for self-defense, as well as race issues.

Zimmerman was acquitted of a second-degree murder charge in 2013.

CNN’s Holly Yan and Keith Allen contributed to this report.