we re following multiple breaking stories, including that brutal attack at ohio state university. sources telling cnn that a facebook page that belonged to the attacker included grievances about attacks on muslims. we also know the attacker was an osu student named abdul razak ali artan. a federal law enforcement official sells cnn he was 18 years old, of somali decent and a legal u.s. resident. authorities say he rammed his car into a group of pedestrians on a sidewalk and used a butcher knife to cut several people before being killed by a police officer. many students barricaded themselves in classrooms. 11 victims were hospitalized. tonight, investigators are searching for a motive, including the possibility this was a premeditated act of