LITTLE ROCK, Ark. (AP) — A 3-year-old boy being taken on a shopping trip by his grandmother was killed in a road rage shooting when a driver opened fire on the grandmother's car because he thought she "wasn't moving fast enough at a stop sign," police said. 
 
 The boy and his grandmother were at the stop sign in southwest Little Rock on Saturday evening when a driver apparently angry about the delay stepped out of his car and opened fire, police said. The boy was struck by gunfire at least once, they said. 
 
 The grandmother, who wasn't struck, drove away and called police from a shopping center. 
 
 Police arrived at the shopping center and found the boy in the car outside a JCPenney department store. The boy was taken to a hospital, where he died shortly after, becoming the second young child shot dead in a road rage incident in the city in the last few weeks. 
 
 Police Lt. Steve McClanahan said investigators believe the boy and his grandmother "were completely innocent" and have no relationship with Saturday's shooter, who was being sought. He said the grandmother simply was "driving the car and was taking her grandson shopping when the incident occurred." 
 
 Police said they were looking for an older black Chevrolet Impala that was being driven by a tall black man. They hadn't released any other description of the man and appealed to the public for help finding him. 
 
 Last month, a 2-year-old girl was killed when a car drove by and someone fired into her vehicle; the shooter in that case hasn't been captured. 
 
 Police Chief Kenton Buckner said the road rage killings were frustrating for the police department and the community, especially because the young victims were "very innocent" and "can do very little to protect themselves." 
 
 "We cannot have a community to where the least protected among us, being infants, who are dying these senseless crimes in our city," Buckner said. 
 
 He said he didn't know if the children's shootings were related. 

 A 3-year-old child was fatally shot in a road rage incident in Little Rock, Arkansas Saturday after a gunman opened fire into the car because the boy's grandmother "wasn't moving fast enough at a stop sign," police said. 
 
 Police were called to a shopping center at around 6:22 p.m. on a report of a child shot inside a vehicle, and the boy was taken to a hospital where he later died, Little Rock police Lt. Steve McClanahan said. 
 
 A gunman is still being sought. It was the second time in a month that a young child was fatally shot while riding in a car, Police Chief Kenton Buckner told reporters. "This is about as frustrated as you can be," he said. 
 
 Police respond to the incident. KARK 
 
 In Saturday’s shooting, the child’s grandmother was taking her grandson on a shopping trip and was at a stop sign when a man in an older Chevrolet Impala apparently upset at the delay got out of his car and opened fire, McClanahan said. The grandmother left and called police from the shopping center. 
 
 Police said they were looking for a black older-model Impala and a tall African-American man. 
 
 McClanahan said the grandmother, who was not hurt, was completely innocent in the shooting and there is no relationship between them and the shooter. 
 
 On Nov. 22, a 2-year-old girl was fatally shot after a car drove by and fired into the vehicle, NBC affiliate KARK reported. The gunman in that case has not been caught, Buckner said. 
 
 "We cannot have a community to where the least protected among us, meaning infants, who are dying in these senseless crimes in our city," Buckner said. He urged anyone with information to contact police.
– A 3-year-old Arkansas boy on a shopping trip is dead after another driver decided that the boy's grandmother "wasn't moving fast enough at a stop sign," got out of his car, and opened fire in an apparent fit of road rage, reports the AP. The boy and his grandmother were at the stop sign in southwest Little Rock on Saturday evening when the other driver opened fire, police said. The boy was struck by gunfire at least once. The grandmother, who wasn't struck, drove away and called police from a shopping center. The boy was taken to a hospital, where he died shortly after. "This is about as frustrated as you can be," Police Chief Kenton Buckner tells NBC News. Police Lt. Steve McClanahan said investigators believe the boy and his grandmother "were completely innocent" and have no relationship with Saturday's shooter, who was being sought. McClanahan said the grandmother simply was "driving the car and was taking her grandson shopping when the incident occurred." Police said they were looking for an older black Chevrolet Impala that was being driven by a tall black man; there was no further description. Last month, a 2-year-old girl was killed when a car drove by and someone fired into her vehicle; the shooter in that case hasn't been captured. Buckner said the young victims were "very innocent" and "can do very little to protect themselves." "We cannot have a community to where the least protected among us, being infants, who are dying these senseless crimes in our city," Buckner said.