"Everything on February 14 completely changed who I am," Wind told Tapper of his experience during the shooting.
Although President Donald Trump and Congress won't be in Washington for the march, Gonzalez and Wind said they're not discouraged by that.
The real reasons Congress can't act on guns or immigration
The real reasons Congress can't act on guns or immigration
"It doesn't matter who's going to be there -- what matters is that our presence is known," Wind said. "If they're not going to be there, we're still going to march. We're still going to make our voices heard."
Gonzalez said this is only the beginning of a movement by students and members of the Parkland community.
"They're getting a platform of their own," Gonzalez said. "I know that a lot of them have been talking on Twitter, they've been talking to politicians."
