A shooter opened fire at a high school in Austria’s second most populous city, Graz, on Tuesday. At least 11 people have died, including the suspect, according to the city’s mayor and police. The attack on Tuesday represents the Central European nation’s deadliest mass shooting outside of wars.

Police in Austria were hunting for clues on Wednesday after a gunman opened fire at his former high school a day earlier, killing nine students and a teacher in a deadly spree that stunned the country...

Investigators found a farewell letter and a non-functional pipe bomb when they searched the home of a man who opened fire at his former school in Austria, killing 10 people and taking his own life, po...