Abelardo Chaparro v. David C Shinn, 459 P.3d 50

In 1993 Arizona abolished parole for offenses committed on or after January 1, 1994 (A.R.S. § 41-1604.09). Chaparro’s murder occurred May 21, 1995.
A jury convicted Abelardo Chaparro of first-degree murder in 1996. The sentencing entry initially used the phrase “natural life,” and later a nunc pro tunc (December) order specified the sentence as “Life without possibility of parole for 25 years.”
ADOC later told Chaparro he would not be parole certified and that his only avenue would be commutation after 25 years; ADOC denied his requests for parole certification.
Chaparro sued under 42 U.S.C. § 1983 asserting entitlement to parole eligibility after 25 years; the federal district court certified the legal question to the Arizona Supreme Court.
The Arizona Supreme Court concluded the trial court intended parole eligibility after 25 years and that, because the State did not timely appeal or move to correct the sentence, the illegally lenient sentence is final and enforceable.

Issue	Chaparro's Argument	State/ADOC's Argument	Held
Does the phrase “life without possibility of parole for 25 years” make Chaparro parole eligible after 25 years despite § 41-1604.09?	The sentencing language unambiguously grants parole eligibility after 25 years.	The sentence is ambiguous or contrary to § 41-1604.09; parole was abolished for offenses after 1/1/1994.	Court: The phrase, read with the nunc pro tunc order and transcript, means parole eligibility after 25 years.
Was “parole” meant to mean executive clemency/commutation or some other form of release?	“Parole” is distinct and was used to mean parole, not commutation.	The court may have intended some other form of release; parole language could be mistaken.	Court: Parole and commutation are legally distinct; the record shows the court meant parole.
Can the court or ADOC refuse to give effect to an illegally lenient sentence when the State failed to appeal or timely move to correct?	The sentence is final and enforceable because the State did not timely appeal or move to correct.	The State argues an illegally lenient sentence cannot be enforced and that the trial court exceeded its power (separation of powers).	Court: Under Dawson and Arizona rules, an illegally lenient sentence is final absent timely state appeal or post-judgment motion; court lacks jurisdiction to correct it now.

State v. Dawson, 164 Ariz. 278 (1990) (illegally lenient sentences final absent timely state appeal or post-judgment motion)
State v. Ovante, 231 Ariz. 180 (2013) (interpret sentences to give effect to sentencing court’s intent)
Glazer v. State, 244 Ariz. 612 (2018) (language is ambiguous when open to multiple reasonable interpretations)
Ryan v. Napier, 245 Ariz. 54 (2018) (resolve ambiguity by examining surrounding circumstances)
State v. Cruz-Mata, 138 Ariz. 370 (1983) (pre-1994 precedent treating “life without possibility of parole for 25 years” as parole eligibility after 25 years)
Solem v. Helm, 463 U.S. 277 (1983) (distinguishing parole from commutation/executive clemency)
Lynch v. Arizona, 136 S. Ct. 1818 (2016) (parole and clemency are distinct concepts)