A motorist behind the woman Saturday evening grew agitated that she was not moving quickly enough, Little Rock Police Department spokesman Lt. Steven McClanahan said.
The man started honking his horn. He got out of his car and fired into the woman’s car, police said.
“One shot was fired and it went through the vehicle and hit the child,” McClanahan said Sunday.
Officers believe the incident occurred on the city’s southwest side. The grandmother was at a stop sign at Mabelvale Cut Off Road and Warren Drive when a confrontation ensued, police said.
Not realizing that the child had been hit, the woman later drove to a JC Penney in west Little Rock. Police received a call shortly before 6:30 p.m. that a child passenger had been shot.
The boy. later identified as Acen King, was transported to Arkansas Children’s Hospital, where he was pronounced dead. A 1-year-old child was also in the car at the time of the shooting, according to a police report.
Police said the grandmother and the slain boy had no relationship with the suspect.
“I certainly have no information to say that anyone in this family has done anything to cause this young person’s life,” Little Rock Police Department Chief Kenton Buckner told CNN affiliate KARK. “But this is about as frustrating as you can be as a public safety official or just a plain citizen.”
No arrests have been made yet. Crime Stoppers is offering a $20,000 reward for information leading to an arrest and conviction, Little Rock police tweeted Sunday.
Homicide detectives are conducting an investigation.
The fatal shooting marks Little Rock’s 40th homicide of the year, police said. Last year, there were 31 homicides in Little Rock.