<a href="https://en.wikipedia.org/wiki/Leonarde_Keeler" id="mw4A" rel="mw:WikiLink" title="Leonarde Keeler">Leonarde Keeler</a> administers <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Polygraph_machine" id="mw4Q" rel="mw:WikiLink" title="Polygraph machine">polygraph tests</a> to two murder suspects, the first time polygraph evidence was admitted in U.S. courts.