Welcome to the Club: mass_shootings_LKM_042

Heather Martin, left, who survived the shooting at Columbine high school nearly 20 years ago, leads a support session for students from Marjory Stoneman Douglas, from left of Martin, Ava Steil, 16, Hayley Siegel, 18, and Brianna Jesionowski, 16, during a Parkland MSD Community Peer Support Event April 2, 2019 in Coral Springs, Florida, US.

Heather Martin, left, who survived the shooting at Columbine high school nearly 20 years ago, leads a support session for students from Marjory Stoneman Douglas, from left of Martin, Ava Steil, 16, Hayley Siegel, 18, and Brianna Jesionowski, 16, during a Parkland MSD Community Peer Support Event April 2, 2019 in Coral Springs, Florida, US.