By Jan Lopatka PRAGUE (Reuters) -Czech police tightened security around schools and other public buildings across the country and Prague's Charles University cancelled all lectures and events on Friday after a student shooter killed 13 people at a university building on Thursday. The shooting was the worst-ever such event in the central European country where many hold guns, some of them sports or hunting rifles, but multiple shootings are rare. Interior Minister Vit Rakusan said police have identified the dead and that no foreigners were among them. The wounded included two United Arab Emirat...
