Austin Eubanks was 17 when he survived the mass shooting at Columbine High School in 1999. He watched his best friend die. In the years following, he struggled with addiction, got clean and became a motivational speaker. He detailed his experiences in a TEDx Talk in 2017 in Denver.
In April, Eubanks died of a heroin overdose.
Eubanks is not the only person who survived a mass shooting, or lost someone in a mass shooting, to later succumb to the lingering impact of trauma and grief.