Justin's mother, Megan, says she was shocked no one else joined in, but she wasn't surprised her son participated in the walkout.
The students carried signs with messages such as "Our Blood/Your Hands" and "Never Again" and chanted slogans against the NRA.
At the White House, 17-year-old Farah Parmah, who goes to Thomas Wootton High School in Rockville, Maryland, said President Donald Trump's controversial proposal to arm and train teachers "is just a bad, bad idea".
The House of Representatives voted 407-10 to fund violence prevention measures at schools including boosting security, mental health screening and creating anonymous reporting systems so students can report threats. But they were warned that if they stayed outside after the 17 minutes, one minute for each of the victims, and began to protest, the students would be punished. "But this is not the world I want to live in". There, people will continue this morning's protest on gun violence in America. "No one should have to live through the horrors that the students at Marjory Stoneman Douglass endured, but sadly, tragedies like these happen far too often. Our voice and our opinion matters more than they really want to acknowledge". "If they know that we don't care if we get in trouble, they'll maybe finally believe we're serious about trying to make change".
"We want everyone to contact their representatives to urge them about stricter gun laws", Walls said.
"We're not supporting it or going against it", Sundblad said.
Hillary Clinton Criticized After Saying Trump Voters Supported a 'Backwards' Agenda
It's an entirely other thing to pull off losing to President Trump . I win the coasts, I win IL and Minnesota, places like that.
Following that, David Hogg, a Parkland shooting survivor and activist, announced Thursday that singers such as Ariana Grande, Jennifer Hudson, Miley Cyrus and others will stand besides marchers by performing on Saturday.
The walkout was entirely student-driven, with no singular person or organization serving as the leader of the effort.
According to Graves, he and his deputies were stationed outside the high school and Coffee County Raider Academy to ensure student safety, though no incidents were reported during the day.
"People are sick and exhausted of gun violence and the time is now for all of us, together, to stand up to the NRA".
About 200 students took part in the walkout at Howell High School, while Brighton Area Schools designated gymnasiums at each building as a safe and secure place for students to gather.
The demonstration was organized Tuesday night by teacher Sarah Grieger and student Austin Keranen.
Supporters across the country are taking a stand with students by traveling to Washington, D.C or by attending a "sibling march" in their state. In response, Keranen reached out and stated gathering up other students. "I thought about the people in my school and how it could be them".
He received support from people all across the political spectrum, he said.
"We support you all". You might see them at practice after school, but today definitely calls them to kind of really take notice of who's on their left and who's on their right, and that this is their family.
In Washington, students were joined by Democratic members of Congress at the Capitol. "So I think adults need to be kept in and have this relationship with kids. I'm glad that we did this".