A longtime College of Southern Nevada sociology professor is facing felony gun charges in connection with an on-campus shooting on the second day of classes. Mark J. Bird was charged last month with discharging a gun within a prohibited structure, carrying a concealed weapon without a permit and possessing a dangerous weapon on school property, court records show. He was found bleeding from a self-inflicted gunshot wound to his arm about 8:15 a.m. on Aug. 28 outside a bathroom in the Charleston campus K building.