Where an offender's impaired intelligence is relied upon to reduce moral culpability, evidence of a causal connection between the impairment and the offending must be established. In the absence of such evidence, a sentencing judge does not err by not reducing moral culpability on that basis. Matters bearing on the relevance of intellectual impairment to general deterrence, conditions of custody, and rehabilitation must be raised before the sentencing judge and cannot be agitated for the first time on appeal.
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