William Cantelo
... that William Cantelo invented an early machine gun, then mysteriously disappeared?
... that <b id="mwAqs"><a href="./William_Cantelo" id="mwAqw" rel="mw:WikiLink" title="William Cantelo">William Cantelo</a></b> invented an early <a href="./Machine_gun" id="mwAq0" rel="mw:WikiLink" title="Machine gun">machine gun</a>, then <a class="mw-redirect" href="./List_of_people_who_disappeared_mysteriously" id="mwAq4" rel="mw:WikiLink" title="List of people who disappeared mysteriously">mysteriously disappeared</a>?