&lt;a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Martin+Luther+King+III&amp;family=editorial&amp;specificpeople=216411 ng-click='$event.stopPropagation()'&gt;Martin Luther King III&lt;/a&gt; bows his head during a prayer at a press conference before marching in the 50th Anniversary Commemorative Freedom Walk June 22, 2013 in Detroit, Michigan. The march commerated the 50th anniversary of civil rights leader Dr. Martin Luther King's Walk To Freedom, which followed the same route through Detroit back in 1963. Guests at the event included &lt;a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Martin+Luther+King+III&amp;family=editorial&amp;specificpeople=216411 ng-click='$event.stopPropagation()'&gt;Martin Luther King III&lt;/a&gt; (Dr. KIng's son), NAACP President Ben Jealous, Rev. Jesse Jackson, Rev. Al Sharpton, Dr. King's advisor Rev. C.T. Vivian, and comedian Dick Gregory.