edward archer. they know that he claimed allegiance to isis but beyond that, he said that the teachings of the koran were contrary to police work. we have an officer shot. reporter: a horrifying scene in philadelphia. brandishing a handgun, firing into the police car of 33-year-old police officer jesse hartnett. archer moves to the window. the gun inside the car firing at least 11 shots, hitting the officer three times in the left arm. shots fired! i m shot! i m bleeding heavily. reporter: incredibly, the police officer not only survived, he chased his attacker down, shooting him in the butt, stopping him while bleeding profusely. his left arm unuseable speaking to the all the while. by the grace of god, i can t explain it based on my beliefs