" In preparing litigation on behalf of the children we were representing, it was clear that these shocking and senseless crimes couldn't be evaluated honestly without understanding the lives these children had been forced to endure. And in banning the death penalty for juveniles, the Supreme Court had paid great attention to the emerging body of medical research about adolescent development and brain science and its relevance to juvenile crime and culpability.

Contemporary neurological, psychological, and sociological evidence has established that children are impaired by immature judgment, an underdeveloped capacity for self-regulation and responsibility, vulnerability to negative influences and outside pressures, and a lack of control over their own impulses and their environment. "

― Bryan Stevenson , Just Mercy: A Story of Justice and Redemption