Every morning, Jennifer Hensel and Jeremy Richman light a candle in honor of their daughter, Avielle.

On December 14, 2012, a shooter opened fire at Sandy Hook Elementary School in Newtown, Connecticut, killing 20 children and six educators. Avielle was one of the children murdered that day. She was six years old at the time.

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Jeremy and Jennifer sat down for StoryCorps to remember Avielle.

After Avielle’s death, Jeremy and Jennifer had two more children, Imogen and Owen. They also started The Avielle Foundation, a neuroscience non-profit that conducts brain research in order to understand the underpinnings of violence and how to build compassion.

Bottom photo: Jeremy and Jennifer with their daughter, Avielle, at her kindergarten graduation in 2012. Courtesy of Jeremy Richman.