The Austrian city of Graz is in mourning after a suspected gunman killed 10 people in a secondary school shooting this morning. Seven women and three men are so far counted among the dead, local officials have said. The 21-year-old suspect - a former pupil that did not graduate from the high school - is believed by police to have killed himself in the school bathroom. At least 11 people injured in the attack are being treated at local hospitals - one of them remains in critical condition. Two legal firearms were used by the gunman, authorities say, and the suspect was not known to police before today's deadly attack.