By Michael Welner, Matthew DeLisi, Heather M. Knous-Westfall, Carolyn C. Meltzer & James D. Seward 

In 2012, the United States Supreme Court struck down existing legislative statutes mandating life without parole sentencing of convicted homicide offenders under age 18. The Court’s core rationale credited research on brain development that concludes that juveniles are biologically less capable of complex decision-making and impulse control, driven by external influences, and more likely to change. Closer scrutiny of the research cited in the defendants’ amicus brief; however, reveals it to be inherently flawed because it did not include relevant populations, such as violent offenders; utilized hypothetical scenarios or games to approximate decision-making; ignored research on recidivism risk; made untenable leaps in their interpretation of relevance to the study of homicide, and failed to include contradictory evidence, even from the brief’s authors. In forensic assessment, a blanket assumption of immaturity based on a homicide offender’s age is not appropriate, as research has demonstrated that in relevant respects, older adolescents can be just as mature as adults. An individualized and thorough assessment of each juvenile offender, including an analysis of personal history, behavioral evidence such as pre-, during, and post-crime behavior and testing data more accurately informs questions of immaturity and prognosis in juvenile violent offenders.

American Journal of Criminal Justice (2023) 48:1157–1182

By Colleen Sbeglia, Cortney Simmons, Grace Icenogle, Marsha Levick, Monica Peniche, Jordan Beardslee, Elizabeth Cauffman

In Miller v. Alabama (2012), the Supreme Court abolished mandatory juvenile life without parole (JLWOP) sentences and subsequently decided that the ruling applied retroactively (Montgomery v. Louisiana, 2016), effectively rendering thousands of inmates eligible for resentencing and potential release from prison. In its decisions, the Court cited developmental science, noting that youth, by virtue of their transient immaturity, are less culpable and more amenable to rehabilitation relative to their adult counterparts. Specifically, the Court notes adolescents' propensity for impulsive action, sensitivity to social influence, and difficulty understanding long-term consequences. Even so, these rulings raised concerns regarding the consequences of releasing prisoners who had committed heinous crimes as juveniles. Several years after the Court's decision, preliminary data are now available to shed light on rates of recidivism among those released. The current paper comprises three goals. First, we discuss the science of adolescent development and how it intersects with legal practice, contextualizing the Court's decision. Second, we present recidivism data from a sample of individuals formerly sentenced to JLWOP in Pennsylvania who were resentenced and released under Miller and Montgomery (N = 287). Results indicate that 15 individuals received new criminal charges up to 7 years postrelease (5.2%), the majority of which were nonviolent offenses. This low rate of recidivism is consistent with the developmental science documenting compromised decision-making during the adolescent years, followed by desistance from criminal behavior in adulthood. Lastly, we discuss the importance of interdisciplinary collaborations between researchers and legal practitioners, as well as critical future avenues of research in this area.

Journal of Research on Adolescence, 00, 1–11. 2024.  

By Ashley Nellis and Devyn Brown

A wave of reforms since 2010 has changed the trajectory of punishment for young people by substantially limiting the use of juvenile life without parole (JLWOP) sentences. At the sentence’s height of prominence in 2012, more than 2,900 people were serving JLWOP, which provided no avenue for review or release. Since reforms began, most sentence recipients have at least been afforded meaningful opportunity for a parole or sentence review. More than 1,000 have come home. This progress is remarkable, yet thousands more who have been sentenced to similarly extreme punishments as youth have not been awarded the same opportunity. Our analysis shows that in 2020, prisons held over 8,600 people sentenced for crimes committed when they were under 18 who were serving either life with the possibility of parole (LWP) or “virtual” life sentences of 50 years or longer. This brief argues for extending the sentencing relief available in JLWOP cases to those serving other forms of life imprisonment for crimes committed in their youth. In addition, The Sentencing Project has estimated that nearly two in five people sentenced to life without parole (LWOP) were 25 or younger at the time of their crime. These emerging adults, too, deserve a meaningful opportunity for a second look because their developmental similarities with younger people reduce their culpability in criminal conduct. The evidence provided in this brief supports bold reforms for youth and emerging adults sentenced to extreme punishments.

Washington, DC: The Sentencing Project, 2024. 10p.