After the 2018 shooting in Parkland, which left 17 dead, Warren participated in a school walkout to protest gun violence and pay tribute to the victims. According to the Washington Post, she also accented her black prom dress with the color orange, which represents the gun violence prevention movement. She knew she had to do something meaningful for graduation, too.
Snapping a photo of her cap QR code will prompt a pop-up directing users to a webpage titled, "I graduated. These high school students couldn't."
The page reveals a list of the dozens of victims of gun violence, which BuzzFeed News reported Warren obtained from Everytown, a nonprofit dedicated to fighting gun violence.
“The names I included on my cap were just the ones killed because of a shooting that happened at a [high] school,” she said. “It doesn't include kids who won't be able to graduate because of a shooting at a movie theater or church.”
The page also encourages people to vote and includes links to Everytown and March for Our Lives.
Warren tweeted the video of her cap May 9. It's since gone viral on social media.
Her graduation ceremony was held just days after the attack on Colorado’s STEM school.
According to the New York Times, at least eight school shootings have taken place at high schools and college campuses in 2019 so far, leaving four dead and 17 others wounded.