LA PROPORCIONALIDAD DE LA PENA A LA LUZ DE LA OCTAVA ENMIENDA: COMENTARIO A LA SENTENCIA DE LA CORTE SUPREMA DE LOS ESTADOS UNIDOS DE NORTEAMéRICA DE 17 DE MAYO DE 2010, GRAHAM V. FLORIDA, 560 U.S. 2010

the united states supreme court decision in graham v. florida forbade life imprisonment without the possibility of parole for offenders under 18 years old for non-homicidal crimes, considering it as incompatible with the eight amendment. in order to reach this decision, the court created a categorical rule, previously applied only to death penalty cases. although the authors agree on the lack of proportionality of the punishment imposed on the defendant, the use of a categorical rule is criticized, considering preferable the case-to-case narrow proportionality approach.