April 20, 2018 6:24 pm MSD Students Take Part in National Walkout NBC 6’s Ari Odzer reports on the national walkout in which Marjory Stoneman Douglas High School students participated. US & World Videos 0:47 Video shows woman hurling bowling ball at another's head in Brickell 2:13 Son speaks out after mother murdered by potential serial killer 2:44 What does declassifying marijuana mean? 2:19 Women charged with killing car burglar in Wynwood claim self-defense 3:44 Florida's 6-week abortion plan to take effect