You forgot ladders and buckets. If you want the horror to stop you have to ban those to. Oh, did you know gardenotools are weapons of war to? Cologne school massacre - Wikipedia The Cologne school massacre was a mass murder that occurred at the Catholic elementary school (katholische Volksschule) located in the suburb of Volkhoven in Cologne, West Germany on 11 June 1964. The perpetrator, Walter Seifert, also known as "Der Feuerteufel von Volkhoven" (firedevil of Volkhoven), attacked the people at the school with a home-made flamethrower and a spear, killing eight pupils and two teachers, and wounding twenty-two others. When police arrived at the scene he fled from the school compound and poisoned himself. He was taken to a hospital, where he died the same evening.