Eighteen-year-old Abdul Razak Ali Artan was killed after plowing his car into pedestrians at Ohio State University and then attacking them with a knife. Authorities are investigating whether it was a terrorist attack.

The FBI arrested three Virginia men who were planning to start a "race war" by bombing Black churches and Jewish synagogues.

A Florida man who posed as a Australian resident online was arrested and charged for allegedly planning a bomb attack on a 9/11 memorial in…