Enduring time: A first look at emerging adults serving life without parole

Life imprisonment without the possibility of parole (LWOP) is a severe, inflexible sentencing tool used in all states except Alaska. It is uniquely American both in terms of its breadth and its application to groups often considered protected from the most severe punishments in other democratic countries. Despite its scale, official reporting of sentencing and corrections data provides little administrative transparency about this population. This gap is especially pronounced for people sentenced during emerging adulthood, a period increasingly addressed by “second look” and resentencing reforms and informed by research showing that criminal behavior declines, and cognitive and psychological development continues well past age 18. Yet, no national data exist on how many people serving LWOP committed their crimes or were sentenced during this period. This article addresses that gap. Drawing from a recently compiled 48-state dataset of people serving LWOP as of 2024, this analysis offers the first national account of the prevalence and demographic composition of the emerging-adult LWOP population and compares with those sentenced at older ages. The results show that emerging adults make up a substantial share of the national LWOP population. These findings provide a necessary empirical foundation for evaluating age-based sentence review mechanisms and illustrate the value of building baseline descriptive data in a domain long obscured by broad, coarse-grained prison population totals.