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The Supreme Court’s proportionality opinions consider these variables [list at least 3].
(1) Type of sentence (length, with or without parole, death penalty); (2) type of offense (homicide vs. non-homicide); (3) characteristics of offender (juvenile vs. adult); (4) characteristics of victim (crime against person (juvenile vs. adult) vs. crime against non-persons); (5) Recidivism (first offense, second offense, six priors, etc.).