Prior to Roper v. Simmons, there was a noticeable presence of the execution of juveniles throughout the United States. However, most sentences had been reversed, which was an indication of growing discomfort with capital punishment for minors among judges.
‘‘The Missouri Supreme Court… held that since Stanford, ‘a national consensus has developed against the execution of juvenile offenders, as demonstrated by the fact that eighteen states now bar such executions for juveniles, that twelve other states bar executions altogether, that no state has lowered its age of execution below 18 since Stanford, that five states have legislatively or by case law raised or established the minimum age at 18, and that the imposition of the juvenile death penalty has become truly unusual over the last decade.’’’
~ Court Opinion of Justice Kennedy in Roper v. Simmons