CNNMarches, walkouts and sit-ins: Gun control battle heads to the streetCNNCNN will hold a town hall with the victims' classmates, parents and community members. "Stand Up: The Students of Stoneman Douglas Demand Action" will air live Wednesday at 9 p.m. ET. (CNN) As survivors of Wednesday's school shooting demand that it be ...No one becomes a mass shooter without a mass-shooting gunLos Angeles TimesHe survived the Florida school shooting.