Parkland Florida is the scene of the latest mass school shooting in the U.S. Hundreds of students and their families have been affected. These shootings have a ripple effect in a community that reaches far and wide. Austin Eubanks knows about that. He survived the Columbine shooting almost 20 years ago and has experienced first-hand that kind of trauma. For Eubanks it manifested in the form of more than a decade of substance abuse. Now sober, and helping others in recovery, he spoke with KNAU’s Justin Regan about the invisible injuries of a mass shooting and the connection between trauma and addiction.