SPRINGFIELD TWP., Pennsylvania (WPVI) -- Authorities have identified and charged the accused gunman following a fatal road rage shooting in Springfield Township, according to the Delaware County District Attorney's Office.
Saddiq Washington, 22, of Darby, is charged with first-degree murder in the death of 54-year-old King Hua.
Washington had a permit to carry a concealed weapon and legally purchased his gun.
District Attorney Jack Stollsteimer said Washington's mother was driving the car, though it's unclear if she was involved. She's not facing any charges at this time.
According to police, Hua, a township resident, and his wife were traveling on State Road (Route 1) near Meetinghouse Lane around 8:43 a.m. Wednesday when the female driver of a vehicle passed them on the shoulder.
The vehicle then stopped and Washington, who was a passenger in the car, partially got out and fired shots at the victim's Toyota, said Stollsteimer.
The bullets went through the windshield and hit Hua. He was taken to the hospital but died from his injuries.
RELATED: Road rage victim in Delaware County apparently killed for driving too slow: Police
Investigators believe Hua was shot and killed for driving too slow.
The suspects' vehicle fled the scene.
Stollsteimer said Washington's arrest was thanks to a three-part effort: Witness accounts, surveillance footage from businesses and homes, and work by detectives.
A key turning point came when investigators found surveillance footage at a body shop that recorded Washington's vehicle after the shooting.
Police were able to pull the plate number and trace it to an address where the car was located.
Investigators said they staked out the home for several hours while trying to obtain a search warrant.
Washington came out of the house with a group of people and got into the vehicle that was used during the shooting, police said.
Officers took the group into custody around 6 p.m. Thursday and ultimately kept Washington in custody where they said he later confessed to shooting the victim.
Police said they found the 9mm believed to have been used in the shooting in the house after they took Washington into custody.