Serbia mourns after deadly school shooting.

Serbia mourns the nine victims of its first mass school shooting, with teachers demanding better security and two wounded pupils fighting for their lives. The suspected shooter, a 13-year-old boy, surrendered on Wednesday after killing eight pupils and a security guard in a hallway and history class at their school in the capital Belgrade. The unprecedented killing prompted the government to announce tougher curbs on gun ownership and to declare three days of official national mourning from Friday.