A 15-year-old boy shot a 17-year-old boy during lunch on the first day of school Monday at Perry Hall High School, police confirmed.
Emily Guilta, a ninth grade student, said she witnessed the shooting, calling it "the most traumatizing thing she's ever seen."
Hear more from Guilta and others in the videos in the gallery.
Carol Erpenstein and her daughter Sarah reunited along Ebenezer Road near Perry Hall Middle School following the incident.
Carol Erpenstein said: "I have a freshman who just started school today. She was scared to death to start high school anyway. She said, 'I want to go back to middle school.' She was really emotional this morning. Now she's
saying, 'I'm not going back in that school.'"