A teenage school shooter has been sentenced to an unprecedented 523 years in prison, bringing a grim chapter in the community’s history to a close. The sentence, delivered after an emotional and closely watched trial, reflects both the severity of the crimes and the lasting impact on victims, families, and the wider public.

The incident occurred on a quiet weekday morning when the teenager, then a student at the school, carried out a planned attack on classmates and staff. The violence left multiple…