Graham v. Florida was a decision by the Supreme Court of the United States, in 2010, in which it was held that juvenile offenders cannot be sentenced to life imprisonment without parole for non-homicide offenses. The court decided whether Roper v. Simmons (2005), which had abolished the death penalty for juvenile offenders, should also apply to sentences of life without the possibility of parole. Currently, according to a May 2010 Catholic News Service article, thirty-seven states, the District of Columbia, and the federal government have statutes that allow for a possible sentence of life in prison without parole for non-homicide crimes. However, only some of those jurisdictions actually have persons serving those sentences for non-homicide crimes, and most of those are adults (according to Justice Anthony M. Kennedy, there are 129 people currently serving non-parole life sentences for non-homicide crimes, 77 in Florida and the rest scattered among only 10 states).

http://en.wikipedia.org/wiki/Graham_v._Florida