COLUMBIA, SC -- A former state trooper faces a felony charge in the shooting of an unarmed man during a traffic stop in Columbia, South Carolina earlier this month.The State Law Enforcement Division said in a news release that 31-year-old Sean Groubert was charged Wednesday with assault and battery of a high and aggravated nature. He faces up to 20 years in prison if convicted.Authorities say Groubert stopped the victim for a seat belt violation on Sept. 4 outside a convenience store. Dash cam video shows the driver get out of his car and the trooper ask to see his license. As the driver turns to grab his wallet from his vehicle, the trooper begins yelling "get out of the car" and opens fire."I just got my license, you said get my license," you then hear the driver say as he falls to the ground."Bro, you dove head first back into your car," Groubert is later heard saying to the driver.The driver survived his wounds.The Department of Public Safety Director Leroy Smith said in a statement that Groubert was not threatened when he fired his gun, and the arrest warrant states the shooting was not justified.Groubert was given a $75,000 bond. It is not clear if he has his own lawyer.The Associated Press contributed to this report.