Oswalt and another person allegedly placed stickers with a racist slur on two cars belonging to social activists parked outside the First Alternative Natural Foods Co-Op.
He has previously been connected with racist writings and ravings. Oswart reportedly expressed hostile views about minorities and women in a student newspaper article.
He has been associated with white nationalist groups and allegedly is shown in pictures giving a Nazi salute.
Last July, Oswalt and three others were stopped by officers on the University of Oregon campus, according to a UO police report. The four men were distributing fliers saying “diversity means fewer white people” or other slogans. He has been arrested on a concealed weapons charge involving a stiletto knife but found not guilty later.