GRAZ: Austrian police on Thursday (Jun 12) described the 21-year-old gunman who carried out the country’s worst school shooting as an introvert who had largely retreated into virtual spaces and carefully planned the deadly attack. The shooter, identified by local media as Arthur A., killed 10 people and injured 11 others at his former high school in the southern city of Graz on Tuesday before turning the gun on himself. He died from a self-inflicted gunshot wound to the head in a school