The clock reads 5 a.m. as Glenn Boettcher rolls into the parking lot. With just a few other cars in the lot, he finds his spot and prepares for the day. The halls are calm and empty as he enters the school....

The hallway was filled with the quiet rumble of students making their way to classes. A distant but familiar screech filled senior Adam McDonald’s ears. He smiled as he neared his destination. The screeching...