ISIS Claims Responsibility for OSU Attack

Crime scene investigators collect evidence from the pavement as police respond to an attack on campus at Ohio State University, in Columbus, OH., on Nov. 28, 2016. (AP Photo/John Minchillo)

“America! Stop interfering with other countries, especially the Muslim Ummah. We are not weak. We are not weak, remember that,” he wrote, according to Fox News.

Law enforcement sources told the network that his post suggests that he was likely self-radicalized before the attack.