Eubanks was found dead during a welfare check after he didn’t answer his phone, Ryg said. Eubanks was 37.
No foul play is suspected, and an autopsy is scheduled for Monday, Ryg said.
He was in the library with his friends, trying to decide whether they were going to go fishing or play golf after school, when they heard the sound of gunshots.
Eubanks, his best friend and a couple of other students hid under the same table. About 10 minutes later, the shooters entered the library and methodically fired under each table, Eubanks said. He was shot in the hand and knee. His best friend was killed instantly.
“Obviously, after that, my life took a pretty big detour,” Eubanks said.
“As a result of my injuries, I was pretty significantly medicated about 45 minutes after being shot. I remember immediately being drawn to that feeling, because it took the emotion away,” he said of the pain medication.
Within a matter of weeks, he said, he developed an opioid addiction.
Eubanks continued to struggle with addiction in his 20s, he said. Then, after multiple attempts at residential treatment, he found long-term recovery and decided to devote his time to speaking out about addiction recovery.
His family released a statement to KMGH saying Eubanks “lost the battle with the very disease he fought so hard to help others face. Helping to build a community of support is what meant the most to Austin, and we plan to continue his work.”
CNN’s Hollie Silverman and Jacqueline Howard contributed to this report.