DENVER, CO - MARCH 14: Aaron Durst, 17, a student at East High School in Denver, raises his hand in protest against gun violence on the Colorado State Capitol grounds on March 14, 2018 in Denver, Colorado. It was one month ago today that a gunman killed 17 people at Marjory Stoneman Douglas High School in Parkland, Florida. (Photo by Ross Taylor/Getty Images)
DENVER, CO - FEBRUARY 21: Students, teachers and community members protest guns in response to the Stoneman Douglas High school shooting in Florida at the Colorado State Capitol on Wednesday, February 21, 2018. Seventeen people were shot and killed during the school shooting on February 14, 2018. (Photo by AAron Ontiveroz/The Denver Post via Getty Images)
TALLAHASSEE, FL - FEBRUARY 21: An activist holds up a placard during a rally at the Florida State Capitol building to address gun control on February 21, 2018 in Tallahassee, Florida. In the wake of last week's deadly mass shooting that left 17 people dead, thousands of supporters joined the Parkland students to call for gun reform. (Photo by Don Juan Moore/Getty Images)
Students from Harvest Collegiate High School form a circle around the fountain in Washington Square Park on March 14, 2018 in New York to take part in a national walkout to protest gun violence, one month after the shooting in Parkland, Florida, in which 17 people were killed. 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 / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)
