Student survivors of Florida school shooting making their voices heard

Students who survived the Florida school shooting have become activists.

— -- In the days since the mass shooting at Stoneman Douglas High School, student survivors have taken the baton from adults to demand justice for their dead friends and teachers, and protection for themselves in the classroom.

"These young people are showing it's a different world," said Horwitz, who has been an advocate for gun control laws for three decades. "They have an authentic voice. It's hard to hear their pleas and be immune to that."

At gun control rallies and in countless interviews, student survivors of the shooting have clearly articulated their opinions that adults have failed to protect them and that politics should not play a role in their safety.

“This is something we can't let keep happening," he said. "Because if we do and we get used to it, it’s going to happen again. This is a time for our country to take a look in the mirror and realize there is a serious issue here."

Like Hogg, fellow students at Stoneman Douglas have organized protests and seized opportunities to speak out.

"We are up here standing together because if all our government and president can do is send thoughts and prayers, then it's time for victims to be the change that we need to see," Gonzalez told the crowd.

Student Jaclyn Corin, 17, a junior at the school, and about 100 of her classmates plan to board buses on Tuesday and travel to the state capitol in Tallahassee as part of the “Never Again” movement spawned by the mass killing and spreading across the country via social media. The students plan to meet with legislators to demand stronger gun laws and bolstered school security.

"It shows that we are mature enough," Corin told ABC News. "We will come at them and do whatever it takes to change the way our state runs and the nation [operates]."

The students have also organized an event for March 14, in which they plan to walk out of class for 17 minutes in honor of those who died.

Ten days after the walkout, a "March for Our Lives" is planned for Washington, D.C. A group of Stoneman Douglas students made the announcement this weekend they will march on Washington next month to demand action on gun control.

The students say they hope the march transcends politics, with Kasky saying "this isn't about the GOP. This isn't about Democrats. This is about the adults."

Students are also planning a nationwide class walkout for April 20, the 19th anniversary of the Columbine High School massacre that left 15 dead, including the gunmen, in Littleton, Colorado. As of Monday evening, more than 66,000 students and teachers across the country had signed a petition pledging to walk out of classrooms that day.

"I can just say, I am proud of them and I'm moved and inspired by the work they are doing. We need them in order to get Congress to act," said Russell, the mother of a 12-year-old daughter.

"I needed their inspiration," Russell said of the Parkland students who have spoken out.

"I think this feels very different this time. I think we've finally reached a tipping point," she said. "This is a moment for these students to understand that they have the power to make their schools safer. They understand that. This is their reality now."