An Ohio man was charged with murder after a car plowed into a crowd of demonstrators following a foiled white nationalist rally Saturday in Charlottesville, Virginia, killing a 32-year-old woman and leaving 19 others injured, police and officials said.

James Alex Fields, Jr. of Maumee Ohio faces one count of second degree murder, three counts of malicious wounding and one count of hit-and-run after the incident, which sent pedestrians flying.

“It was absolutely the most horrible thing I’ve ever witnessed,” said Brittany Caine-Conley, the lead organizer with Congregate Charlottesville. “We ran to the scene and one of my friends actually tried to hold the wounds together for the woman who has passed away.”

White nationalist and other attendees clashed with those who arrived to oppose the demonstration, which began with a torch-wielding group marching through the city Friday evening and was intended to culminate in an event entitled “Unite the Right,” set to begin at noon on Saturday.

However, the event — which was roundly criticized on both sides of the aisle and included calls for the actions to be deemed terrorism — was shut down by authorities early Saturday afternoon. Virginia Gov. Terry McAuliffe declared a state of emergency in the city and police ordered the crowds to disperse.

President Trump denounced the “egregious display of hatred, bigotry and violence on many sides,” but drew scrutiny for not condemning the white nationalists directly.

Dramatic video taken after the demonstration was shut down shows crowds walking along a downtown Charlottesville street as several cars move slowly along the same avenue. Abruptly, a gray Dodge Challenger rams into the back of another vehicle, slamming one or more cars ahead of it amid the crowd of protesters. The driver then rapidly reverses away from the scene.

Warning: The video contains graphic images .