PARKLAND, FL - MARCH 24: Marjory Stoneman Douglas High School students participate in the March For Our Lives event at Pine Trails Park as they walk to the high school on March 24, 2018 in Parkland, Florida. The event was one of many scheduled around the United States calling for gun control after a gunman killed 17 people on February 14 at the high school. (Photo by Joe Raedle/Getty Images)
