Because I looked at the photos of the "riot": https://www.daytondailynews.com/news/local/photos-police-rio...
And the kids on the street generally look like entitled middle-class white kids causing a disturbance, which reminded me of my own days at the University of Dayton.
EDIT: Perhaps they're being pressured by the administration but the Twitter account for the student newspaper says it was not a protest, and that "students were treating it as a potential last party of the semester".