Zone 2 officers responded to a Shotspotter alert for four rounds fired in the 1000 block of Herron Avenue just before 9:30 p.m.
When they arrived on scene a male was standing on the porch of a residence waiting for police to arrive.
He told officers he had a dispute with another male who was in a vehicle honking his horn and yelling and wouldn't stop when he asked him to. He said he fired his gun when he thought the male in the vehicle was reaching for a weapon.
The male in the vehicle was not struck or injured. The actor was arrested on scene and a firearm was recovered.
He faces charges of Aggravated Assault, Simple Assault, and Recklessly Endangering Another Person.