World War II veteran <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Walter_Seifert" id="mwAVw" rel="mw:WikiLink" title="Walter Seifert">Walter Seifert</a> attacks an elementary school in <a href="https://en.wikipedia.org/wiki/Cologne" id="mwAV0" rel="mw:WikiLink" title="Cologne">Cologne</a>, Germany, killing at least eight children and two teachers and seriously injuring several more with a home-made <a href="https://en.wikipedia.org/wiki/Flamethrower" id="mwAV4" rel="mw:WikiLink" title="Flamethrower">flamethrower</a> and a <a href="https://en.wikipedia.org/wiki/Lance" id="mwAV8" rel="mw:WikiLink" title="Lance">lance</a>.