Marjory Stoneman Douglas High School staff, teachers and students walk out of classes on to their team's football field to protest gun violence in Parkland, Florida on March 14, 2018.

Students across the US walked out of classes on March 14, in a nationwide call for action against gun violence following the shooting deaths last month at a Florida high school. The nationwide protest is being held one month to the day after Nikolas Cruz, a troubled 19-year-old former student at Stoneman Douglas, unleashed a hail of gunfire on his former classmates.
 / AFP PHOTO / RHONA WISE        (Photo credit should read RHONA WISE/AFP/Getty Images)