4-year-old killed in road rage shooting.

Mayor dies in police chase days after his town’s entire police force quit.

A 4-year-old boy was killed in front of his parents Friday night in a road rage shooting in California.

The incident occurred around 7:30 p.m. when the victim’s family was driving on the Sierra Highway, according to the Los Angeles County Sheriff’s Department.

Police say the victim’s family car was cut off by an aggressive driver who began “following them through several surface streets.”

“While being pursued by the suspects, the victim driver slowed his vehicle, at which time the suspect driver pulled up along the passenger side of the victim’s car and began shooting,” police say.

The boy, who was in the backseat, was hit in the torso and his parents drove him to a local hospital where he was pronounced dead. His parents were not injured.

“We understand that this is a really good family. I’ve talked to members of their church,” Lancaster Mayor R. Rex Parris said. “It’s unimaginable that this could have been any of our families. It could have been any of us.”

The Los Angeles County Sheriff’s Department told ABC News in a statement on Sunday that a 29-year-old man and a 27-year-old woman have been arrested on suspicion of murder in connection with the child’s death.