People v. Perez
Key Takeaways
- 1 Miller's Eighth Amendment protections do not extend to offenders who were 18 or older at the time of the offense.
- 2 Neither post-Miller case law developments nor general brain science studies constitute 'cause' for a successive postconviction proportionate penalties claim.
- 3 Relevant for criminal defense attorneys handling successive postconviction petitions for adult offenders sentenced to natural life imprisonment.
Summary
Anthony Perez was convicted of first-degree murder committed in 1979 when he was 18 years old and sentenced to natural life imprisonment. In 2019, he filed a pro se motion for leave to file a successive postconviction petition asserting an Eighth Amendment Miller claim, a proportionate penalties clause claim under the Illinois Constitution, and arguments grounded in scientific studies on young adult brain development. The circuit court ultimately dismissed both claims, and Perez appealed, also arguing that appointed postconviction counsel rendered unreasonable assistance.
The First District affirmed on all three issues. First, the court held that Miller's Eighth Amendment protections apply only to juvenile offenders and cannot be extended to defendants who were 18 or older at the time of the offense — a policy choice the court left to the legislature or the Illinois Supreme Court. Second, the court held that Perez could not establish cause for his proportionate penalties clause claim because such challenges have been available in Illinois for decades, predating Miller, and neither subsequent Miller-related case law nor generalized scientific studies on young adult brain development constitute an objective factor that prevented earlier assertion of the claim. Third, the court found no unreasonable assistance by postconviction counsel, who filed a Rule 651(c) certificate and had no obligation to advance legally meritless arguments against binding supreme court authority.
This decision reinforces the strict boundaries of the cause-and-prejudice test for successive postconviction petitions and confirms that brain science studies alone — without case-specific evidence tied to the defendant's own mental functioning — will not satisfy the cause prong.
Key Holdings
1. The Eighth Amendment protections established in Miller v. Alabama are categorically unavailable to defendants who were 18 years of age or older at the time of the offense; Illinois courts will not extend Miller to 'emerging adults' absent direction from the legislature or the Illinois Supreme Court.
2. Proportionate penalties clause challenges based on youthful characteristics have been available in Illinois for decades and do not require Miller or its progeny as a predicate; accordingly, post-Miller case law developments do not constitute cause to raise such a claim in a successive postconviction petition.
3. General scientific studies on young adult brain development do not constitute cause under the cause-and-prejudice test where the defendant presents no new case-specific facts about his own mental functioning beyond what was already before the sentencing court.
4. Postconviction counsel does not render unreasonable assistance by declining to argue against binding Illinois Supreme Court authority or by failing to submit affidavits where the defendant does not explain what material information those affidavits would have provided.