Goerlich GRAZ, Austria (Reuters) -Austrian investigators were on Thursday slowly piecing together the character of the man who carried out the country's worst school shooting this week, with officials struggling to reach anyone who knew the deceased 21-year-old well.

Austria’s chancellor says his country will toughen its gun laws after a 21-year-old former student killed nine students and a teacher at his school last week in what’s considered the Alpine country’s deadliest post-war attack.

The suspected gunman – a 21-year-old Austrian and former pupil at the school – took his own life in the school toilet after the attack on Tuesday morning, police believe. Six