Individuals told as children that they are unworthy of ever living again in a free society have renewed hope this week because of a U.S. Supreme Court decision reaffirming its call to hold young people accountable in age-appropriate ways. Now it is up to resentencing courts and parole authorities to ensure that happens. The Supreme Court's historic ruling, in Montgomery v. Louisiana, held as retroactive its 2012 decision in Miller v. Alabama, which banned mandatory life without parole sentences for children. Montgomery is the fourth decision from our nation's highest court in just over a decade establishing that children are “constitutionally different” from adults, and that their child status is therefore relevant to sentencing—thereby making them less deserving of our harshest available punishments. In the 6-3 decision written by Justice Anthony Kennedy, the Court said, “Miller… did more than require a sentencer to consider a juvenile offender's youth before imposing life without parole; it established that the penological justifications for life without parole collapse in light of 'the distinctive attributes of youth.'” But the ruling alone does not guarantee that individuals eligible for relief will be granted their due meaningful opportunities for second chances.