Back in 2012, the Supreme Court held that mandatory life sentences for juveniles without the possibility for parole are unconstitutional. The question at the time, and one that has been posed to state courts ever since, was whether that ruling applied to inmates already serving life sentences for juvenile convictions.
And now we know the answer. In a 6-3 decision, the Supreme Court decided that its ruling in Miller v. Alabama is retroactive, and those that were previously sentenced to mandatory life terms as juveniles must be eligible for parole. Let's take a look at the Court's ruling.