San Antonio's march commemorating Martin Luther King Jr. turned 25 Monday, drawing a crowd at least 100,000 strong out into the city's Eastside streets. For this year's keynote speech, the legendary civil rights leader's eldest son, Martin Luther King III, spoke of what his father's legacy means more than 40 years after his assassination. Dr. King, he said, not only championed racial equality but also fought to end poverty, violence, and war. Though great strides have been made to eradicate institutional racism since his father's passing, he said, "In the area of poverty and militarism, we are not moving rapidly enough in a progressive way. ... We are better than what we are exhibiting today." See more of Martin Luther King III's comments in the video below.