An estimated 30,000 people turned out for the March For Our Lives in Atlanta. Students led the massive crowd through downtown chanting "Not One More," "Books Not Bullets" and "Vote Them Out." Voting was a major theme of the event. Volunteers fanned out with clip boards to register young marchers. Georgia students and survivors from the February school shooting in Parkland, Florida, gave speeches. So did U.S. Rep. John Lewis and Atlanta Mayor Keisha Lance Bottoms. Bottoms told the crowds, "Atlanta stands with you."