A suspect was arrested late Thursday night in the road-rage killing of a 3-year-old boy last week, according to the U.S. Attorney for the Eastern District of Arkansas. Acen King, 3, was fatally shot in the back seat of a car in Little Rock when an individual shot at the vehicle when it was stopped at a traffic light. Law enforcement officials believe the incident was a bout of road rage. King was hit in the neck and later died from his injuries after being taken to Arkansas Children’s Hospital. His grandmother, who was driving the car, survived the shooting. The suspect, Gregory Holmes, was captured after a $20,000 reward was offered by the city and the FBI.