Whether Ring v. Arizona announced a substantive rule that applies retroactively to cases already final on direct review.
Holding
No. Ring announced a procedural, not substantive, rule.
Reasoning
Under Teague, new substantive rules generally apply retroactively because they alter the range of conduct or class of persons the government may punish. By contrast, rules that regulate the method for deciding a defendant’s culpability or punishment are procedural and ordinarily do not apply to final convictions.
Ring did not change which murders Arizona could punish by death. Arizona’s statutory aggravating circumstances still defined the same class of death-eligible defendants before and after Ring. Ring changed only who had to find those facts: a jury rather than a judge.
Although Ring described aggravating circumstances as the functional equivalent of elements for Sixth Amendment purposes, that description did not itself make the aggravators new substantive elements of Arizona murder law. The Court distinguished between holding that a fact the State has made essential to death eligibility must be found by a jury, which is procedural, and making a fact essential to the death penalty, which would be substantive.
Rules that reallocate factfinding authority between judge and jury are prototypical procedural rules. Ring therefore limited Arizona’s permissible procedures for imposing death rather than narrowing the State’s substantive power to impose it.