Serbia experiences two mass shootings in two days, leaving 17 dead and suspect arrested.

A gunman killed eight people and wounded 14 in two villages in Serbia, a day after a 13-year-old boy used his father’s guns to kill eight fellow students and a guard at a school in Belgrade. The suspect wore a T-shirt bearing a pro-Nazi slogan, and police arrested him after an all-night search. The back-to-back bloodshed sent shockwaves through a Balkan nation scarred by wars, but unused to mass murders. The Serbian government sought to crack down on guns and police raced to investigate the fresh violence, while the nation started to ask what social factors may have contributed to the mass shootings.