Three school attacks in four days shake central Poland

A 37-year-old school caretaker was killed and others, including children, were hurt in three attacks over four days in Poland's Mazovian region, around Warsaw. Police say a 19-year-old wounded nine at a job-training school, a 15-year-old killed the caretaker in Leszczydół-Nowiny, and a woman wounded three in Warsaw. Prime Minister Donald Tusk blamed online glorification of violence.