Why it matters: The protesters had marched peacefully in L.A. on Aug. 29, 1970, in what was then the largest anti-war action by a minority group in the U.S. They were met with tear gas by sheriff's deputies storming into Laguna Park, leaving three people dead. Activist and war veteran Cruz Becerra told ABC7, "It is part of our history. We took a stand against an unjust war and that mattered."