normal. and then the rest just kind of was what it was. sophomore year was probably the worst for me mental health-wise because i was just recovering from witnessing everything i witnessed, like being in the building. reporter: that was the year s brooke s classmate, lauren hog and her family decided they had to leave parkland and move to d.c. so much has happened that it feels like i ve been living in dog years. really? it feels like i ve been in high school for 20 years. reporter: and in those years, they ve turned their pain into action. i m 14. i shouldn t have to think about getting shot in my school. reporter: starting a movement against gun violence that has gone global with march for our lives, and a crisis that s only gotten worse. there s been more than 150 mass shootings since the beginning of this year. mm-hmm. and i m sure my number is low and outdated. yeah, it is. people are always saying if sandy hook didn t change anything you already know what
years. reporter: and in those years, they have turned their pain into action. i m 14. i shouldn t have to think about getting shot in my school. reporter: starting a movement against gun violence, that has gone global. with march for our lives. and a crisis that s only gotten worse. there s been more than 150-mass shootings since the beginning of this year. and i am sure, my number is low and outdated. yeah, it is. people are always saying, if sandy hook didn t change anything, you already know what i m going to say? yeah. i know what you re going to say. and for, like, two years after the shooting, i thought that the reason why these things kept happening is because they just needed to hear one more story. politicians just need to hear one more voice. and so, as a child, i tried to do that. and then, i got older, and i worked more. and i realized, it s not that they don t know what to do. they choose not to. reporter: and it isn t just a horrific mass shooting that scarr
action. i m 14. i shouldn t have to think about being shot in my school. reporter: starting a movement against gun violence that has gone global with march for our lives. teens taking on one of the most intractable political fights in america today. and a crisis that s only gotten worse. there s been more than 150 mass shootings since the beginning of this year. and i m sure my number is low and outdated. yeah. it is. reporter: people are always saying if sandy hook didn t change anything, you already know what i m going to say. yeah. i know what you re going to say. and for, like, two years after the shooting i thought that the reason why these things kept happening is because they just needed to hear one more story. politicians just need to hear one more voice. and so as a child, i tried to do that. and then i got older and i worked more and i realized it s not that they don t know what to do. they choose not to. reporter: and it isn t just a horrific mass shooting that s
think about getting shot in my school. reporter: starting a movement against gun violence that had gone global, march for our lives and the crisis have only gotten worse. i am sure my number is low and out dated. it is. reporter: people are always saying if sandy hook did not change anything you already know what ip going to say. yeah, i know what you are going to say. two years after the shooting i thought the reasons why these things kept happening because they needed to hear one more story, politicians needed to hear one more voice. as a child i try to do that. then i got older and i worked more and i realized it is not they don t know what to do, they choose not to. reporter: it is not a horrific mass shooting that scarred their high school years. they had been hit by another trauma, coronavirus, shutting down schools and their lives.