Ariza Giansteban, 28, was taken into custody over the weekend in Paramus, New Jersey, police said Monday.
The video featured above is from a previous report.
He is currently awaiting extradition to Philadelphia to face charges.
The shooting happened around 1:47 a.m. on Sunday, June 29 in the 300 block of N. Columbus Blvd.
Detectives say a driver flagged down the 68-year-old officer, telling him he was the victim of a road rage incident on I-95.
That's when police believe the shooter, who was driving a white Kia Sportage, opened fire on the officer.
The 68-year-old officer managed to drive a short distance before crashing into a tree in front of Dave and Busters along Columbus Boulevard.
The officer was taken to the hospital in critical condition.