Trump's Republican administration alleges the ban violates the Constitution's Second Amendment right to bear arms.
The teen's graduation cap pays homage to hundreds of students who won't ever get to walk across the stage.
Friday marks 19 years since the Columbine High School shooting massacre and students in Chicago and nationwide are marking the date with a walkout.
Students of Columbine High School have been asked to participate in a day of service rather than join the National Walk Out on April 20.
Students at the Chicago Academy for the Arts will perform "Columbinus," a play based on the deadly 1999 attack inside Columbine High School, next week.
Sue Klebold, mother of Columbine school shooter Dylan Klebold, speaks for the first time in 17 years about her son's horrific act and her new book examining her own role in the shooting and how to prevent school shootings in the future.