June 11, 1964: Cologne school massacre. Armed with an insecticide sprayer converted into a flamethrower, a lance and a homebuilt mace, 42-year-old Walter Seifert entered the Katholische Volksschule and opened fire on the girls playing in the courtyard. He then knocked in classroom windows with his mace and fired inside. Eight children and two teachers died, twenty children and two teachers survived with very severe burns. After taking a cyanide pill, Seifert died the following day, in custody.
