18-year-old Ely Serna makes an apology statement at his court sentencing. Serna was the teen who shot fellow student Logan Cole and terrorized a community of 398 students, teachers and staff in January 2017. Serna shot Cole, fired at others and into two full classrooms during the day of the planned attack. The judge sentenced Ely Serna to the maximum punishment of 23 1/2 years in prison.