Student reporter at Marjory Stoneman Douglas High School, David Hogg, recorded video of his classmates while hiding from the deadly shooting that claimed 17 lives Wednesday.
Hogg has since spoken out about what children need from politicians in order to prevent future massacres.
"Please, take action. Ideas are great...But what's more important is actual action...saving thousands of children's lives. Please, take action," Hogg said while talking to CNN.
Hogg also talked of a janitor who helped the students shelter themselves in a classroom.
"She saved my life, and she easily saved 40 others there," he said.