For 53-year-old Henry Smolarski, and thousands of others across the country, the work of Marsha Levick means he will not die in prison.

Smolarski has been incarcerated since he was 17. He is one of thousands of inmates who were given a life without parole sentence when they were juveniles—a sentence that was recently ruled unconstitutional based in large part on the work of Levick and the Juvenile Law Center, which she co-founded.