15-year-old kills school employee in knife attack in Poland; second incident this week

A 15-year-old student attacked three people with a knife at a primary school in Leszczydole-Nowiny, killing a 37-year-old woman and injuring a teacher and the director, who subdued the attacker. This is the second attack at the school this week, indicating a pattern of escalating violence. The incident raises concerns about school security and juvenile violence in Poland.