Susan Bro, the mother of Charlottesville car attack victim, Heather Heyer, speaks to reporters outside federal court in Charlottesville, Va., Thursday, July 5, 2018. Bro attended the hearing for James Alex Fields who is charged with hate crimes as a result of the white nationalist rally last year. (AP Photo/Steve Helber)
In this Aug. 12, 2017, file photo, people fly into the air as a vehicle is driven into a group of protesters demonstrating against a white nationalist rally in Charlottesville, Va. Federal hate crime charges have been filed against James Alex Fields Jr., accused of driving the car. (Ryan M. Kelly/The Daily Progress via AP, File)
CHARLOTTESVILLE, Va. — An Ohio man pleaded not guilty to federal hate crime charges Thursday in a deadly car attack on a crowd of protesters opposing a white nationalist rally in Virginia.