The shooter has been identified as Steven Jones, an 18-year-old freshman at the school, who has been taken into custody by campus police, according to NAU police chief Greg Fowler. The relationship between Jones and his alleged victims, all unidentified male students, is unclear. The state school’s Flagstaff campus has more than 20,000 students enrolled. The school has a campus-wide alert system that is “usually pretty good” about quickly updating students about crimes on campus Arizona but this time didn’t send a campus alert until nearly an hour later. Board of Regents prohibits students form carrying guns around campus but students are allowed to store them in their car.