Teen stabs 7-year-old girl to death at school in Croatia

A 7-year-old girl was stabbed to death Friday at an elementary school in Croatia by a knife-wielding teenager who also wounded three other children and a teacher, officials said.   Video footage Friday showed children running away from the school as a medical helicopter was landing.    The attacker is a former student of the Precko Elementary School in Zagreb where the attack took place, according to Interior Minister Davor Bozinovic.  The teen had a history of mental health issues and after...