Stanford v. Kentucky, 1989
"Taking the life of someone for a crime he or she committed when they were under 18 is cruel and unusual punishment. Justice O’Connor is correct that the Court must go beyond the plurality’s assessment of the state of the law in the various states. Reviewing all age-based statutes and a proportionality analysis are required to truly judge the constitutionality of a death sentence."
- Justice William Brennan Jr., Dissent of the Court
"No national consensus forbids executing 16 and 17 year olds. However, the Court has the obligation to conduct a proportionality analysis, and should consider age-based statutory classifications that are relevant to the analysis."
- Justice Sandra Day O'Connor, Concurrence of the Court