<a href="https://en.wikipedia.org/wiki/Altamont_Free_Concert" id="mwww" rel="mw:WikiLink" title="Altamont Free Concert">Altamont Free Concert</a>: At a free concert performed by the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Rolling_Stones" id="mwxA" rel="mw:WikiLink" title="Rolling Stones">Rolling Stones</a>, eighteen-year old Meredith Hunter is stabbed to death by <a href="https://en.wikipedia.org/wiki/Hells_Angels" id="mwxQ" rel="mw:WikiLink" title="Hells Angels">Hells Angels</a> security guards.