FILE - In this Nov. 24, 2014, file photo, students, parents and grandparents hold signs during a protest across the street from Norman High School in Norman, Okla. Police say they have arrested Tristen Kole Killman-Hardin, 18, a former Norman High School student, and accused him of raping an unconscious girl, alleging he’s responsible for an attack that helped trigger protests by his former classmates. (AP Photo/Sue Ogrocki, File)