According to the police, the Graz shooter was a passionate player of first-person shooter games. He was a very introverted person who lived a very secluded life, said the head of the Styrian State Criminal Police Office (LKA), Michael Lohnegger.

At least nine people were killed Tuesday in a shooting attack at a high school in the Austrian city of Graz, police said, adding that the perpetrator was also dead.