Robert Steinhäuser <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Erfurt_massacre" id="mwAT0" rel="mw:WikiLink" title="Erfurt massacre">kills 16</a> at <a href="https://en.wikipedia.org/wiki/Gutenberg-Gymnasium_Erfurt" id="mwAT4" rel="mw:WikiLink" title="Gutenberg-Gymnasium Erfurt">Gutenberg-Gymnasium</a> in <a href="https://en.wikipedia.org/wiki/Erfurt" id="mwAT8" rel="mw:WikiLink" title="Erfurt">Erfurt</a>, Germany before committing suicide.