Police arrested a University of Kentucky student who was caught on camera using a racial slur and physically attacking two Black students Sunday.The fan — Ashley Lyles, who apologized in a statement to NBC affiliate WLEX of Lexington — was not a student, a university spokesperson said.The mural was covered for more than a year as officials debated how to handle it before it was unveiled again in 2017 with a plaque next to it providing context about its history, concerns that had been raised about it over the years and how the university was working to ensure a more inclusive environment.In 2008, a University of Kentucky student and another man were arrested and accused of hanging a life-size likeness of President-elect Barack Obama from a tree on the campus, an act that university officials condemned.In response to those reports, a university spokesperson pointed to the school's recent increase in enrollment of students of color — who now make up 16% of the student body, according to a September news release — and the school's ongoing diversity, equity and inclusion initiatives."