District 4 officers responded to an area hospital after a 31-year-old man arrived with a gunshot wound.
The man told officers he was driving and stopped at 20th and Locust around 2:20 a.m. on August 17. He heard gunfire and the sound of his driver door window shattering.
He drove away from the area and realized he was bleeding from an apparent graze wound to his chin. He drove himself to the hospital for treatment.
The investigation is ongoing.