Students, teachers, and parents participate in National Walkout Day in remembrance of the murders at Columbine, and more locally, the Parkland massacre. (sun-sentinel.com)
Students from Plumosa School of the Arts participate in National Walkout Day in solidarity with Marjory Stoneman Douglas High School students, a month after the Valentine's Day massacre that left 17 dead in Parkland. (local10.com)
Balboa Academy High School students form a heart during National Walkout Day to show solidarity with Marjory Stoneman Douglas High School students. (local10.com)