William Queen
... that ATF undercover agent William Queen infiltrated the Mongols motorcycle gang so successfully that he was elected treasurer and vice-president of his chapter?
... that <a href="./Bureau_of_Alcohol,_Tobacco,_Firearms_and_Explosives" id="mwCTg" rel="mw:WikiLink" title="Bureau of Alcohol, Tobacco, Firearms and Explosives">ATF</a> <a class="mw-redirect" href="./Undercover_agent" id="mwCTk" rel="mw:WikiLink" title="Undercover agent">undercover agent</a> <b id="mwCTo"><a href="./William_Queen" id="mwCTs" rel="mw:WikiLink" title="William Queen">William Queen</a></b> infiltrated the <a class="mw-redirect" href="./Mongols_(motorcycle_club)" id="mwCTw" rel="mw:WikiLink" title="Mongols (motorcycle club)">Mongols</a> <a class="mw-redirect" href="./Motorcycle_gang" id="mwCT0" rel="mw:WikiLink" title="Motorcycle gang">motorcycle gang</a> so successfully that he was elected treasurer and vice-president of his chapter?