Poland: 15-year-old stabs three at school near Wyszkow; caretaker dead

A 15-year-old former student attacked three staff members with a sharp object at a primary school in Leszczydole-Nowiny, Wyszkow County, killing a 37-year-old caretaker. The motive is unclear; the suspect is in custody. This is a localized violent incident, not a systemic threat, but raises questions about school security and juvenile justice in Poland.