“Department of Homeland Security can confirm the suspect involved in a terror attack in Harrisburg Pennsylvania” was a beneficiary of “extended family chain migration,” Tyler Q. Houlton, the acting press secretary for the Department of Homeland Security, said in a tweet.

Ahmed Amin El-Mofty fired several shots at a Capitol police officer in downtown Harrisburg on Friday afternoon; one shot “went very close to hitting [the officer],” police earlier reported. Half an hour later, the attacker fired shots at a Pennsylvania State Police trooper. One of the shots hit the trooper. She is expected to make a full recovery.

El-Mofty then opened fire on local officers with two handguns. The officers, none of whom were injured, fired back, killing the attacker.