Vincent Mroz
... that United States Secret Service agent Vincent Mroz shot an attempted presidential assassin in the "biggest gunfight in Secret Service history"?
... that <a href="./United_States_Secret_Service" id="mwDQw" rel="mw:WikiLink" title="United States Secret Service">United States Secret Service</a> agent <b id="mwDQ0"><a href="./Vincent_Mroz" id="mwDQ4" rel="mw:WikiLink" title="Vincent Mroz">Vincent Mroz</a></b> shot an attempted presidential assassin in the "biggest gunfight in Secret Service history"?