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Understanding Trends

Manslaughter Sentences in 2021: Federal Court vs. Courts-Martial

Courts-martial with 2021 trial dates recorded 11 convictions for manslaughter under Article 119, and the median adjudged confinement was 42 months (3.5 years). In fiscal year 2021, federal courts sentenced 56 people under the voluntary or involuntary manslaughter guidelines, and the median prison te

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In brief: Courts-martial with 2021 trial dates recorded 11 convictions for manslaughter under Article 119, and the median adjudged confinement was 42 months (3.5 years). In fiscal year 2021, federal courts sentenced 56 people under the voluntary or involuntary manslaughter guidelines, and the median prison term was 60 months (5 years). Both groups are small, so single-year figures should be read with care.

Updated November 3, 2026 · Sources: U.S. Sentencing Commission and Federal Judicial Center, fiscal years 2016–2025 · Military Trial Results

This post uses the U.S. Sentencing Commission's records of 56 people sentenced in federal court in fiscal year 2021, compared with court-martial results from this site's Military Trial Results data (updated November 2, 2026). Acquittals and dismissals come from a second source, the Federal Judicial Center's records of 753,808 federal defendants whose cases ended in fiscal years 2016 to 2025. It is part of the Federal Prosecution Analysis series, which builds on Military Moves Toward Sentencing Guidelines to Mirror the Federal System. How the numbers were built: How the Federal Comparison Data Was Built.

Small Counts on Both Sides in 2021

The military count for 2021 is 11 convictions across all 4 services: Army 2, Air Force 2, Navy 4, and Marine Corps 3. A count this small is not a trend, and 1 or 2 cases can move the median.

The federal group covers people sentenced under guideline §2A1.3 (voluntary manslaughter) or §2A1.4 (involuntary manslaughter). There were 56 of them in fiscal year 2021.

Courts-martial, 2021Federal court, FY2021
Convictions or people sentenced1156
Sentenced to confinement or prison82%98%
Median confinement or prison42 months60 months
A quarter received this or more65 months94.5 months
Pleaded guilty4 of 11 with a plea recorded (36%)96%
Mandatory minimum appliedSee the caveats5 of 55 with the information (9%)

Confinement and Prison Terms

Confinement was part of 9 of the 11 court-martial sentences (82%). The median was 42 months, and a quarter received 65 months or more.

In federal court, 55 of the 56 people (98%) received a prison term. No one received probation only. Among those sent to prison, the median was 60 months, a quarter received 94.5 months or more, and a quarter received 21 months or less.

The federal median was higher than the court-martial median. The military figures are sentences as adjudged at trial, before clemency or appeal. The federal figures are terms imposed, not time served.

How Often Did These Cases Go to Trial?

Pleas differed between the systems. Only 4 of the 11 military convictions (36%) came from guilty pleas. In federal court, 54 of 56 people (96%) pleaded guilty, and 2 were convicted after a trial.

At courts-martial, the median confinement was 42 months after a guilty plea, based on 3 cases. Contested cases ending in conviction had a median of 45 months, based on 6 cases. Both groups are too small to compare with confidence.

In federal court, the median after a guilty plea was 60 months. The median of 81 months after a trial rests on only 2 people. Of the federal guilty pleas, 93% had a written plea agreement and 7% were straight pleas.

Court Level and Punitive Discharges

A general court-martial decided 10 of the 11 convictions (91%). That is the highest level of military trial court.

Of the 10 enlisted members convicted, 7 received a punitive discharge (70%): 4 dishonorable discharges and 3 bad-conduct discharges. Federal sentences have no discharge.

The Guideline Range and Other Federal Orders

All 56 federal sentences had guideline information. Of these, 22 (39%) were within the range and 14 (25%) were above it. Another 7 (13%) were below the range at the government's request, and 13 (23%) were below it without such a request.

A mandatory minimum applied to 5 people (9%). Supervised release after prison was ordered for 55 (98%), with a median term of 36 months. Restitution was ordered for 31 (55%) and a fine for 2 (4%).

In criminal history, 55% were in category I and 0% were in category VI. Court-martial records have no criminal history field.

Limits of This Comparison

The court-martial year is calendar 2021 by trial date. Federal fiscal year 2021 ran from October 1, 2020 to September 30, 2021.

Across all years, the data holds 38 court-martial convictions from 2016 to 2025, with a median confinement of 60 months, and 737 federal sentences from fiscal years 2016 to 2025, with a median prison term of 63 months. The yearly federal counts are below.

The records do not show the circumstances of each death, or why a sentence was set at a given length.

Fiscal yearPeople sentencedMedian prisonPleaded guilty
20166860 months96%
20177360 months96%
20186141 months97%
20197463 months95%
20203851 months89%
20215660 months96%
20227970 months92%
20238570 months91%
202411060 months86%
20259372 months96%

How We Counted

Courts-martial with a trial date in 2021 ending in a conviction for manslaughter (Article 119) (11). Federal: people sentenced in fiscal year 2021 under guideline §2A1.3 (voluntary manslaughter) or §2A1.4 (involuntary manslaughter) (56), U.S. Sentencing Commission.

Federal fiscal years run from October 1 to September 30. No person, judge, or lawyer is identified in any of these records.

What to Keep in Mind

Who is in each set of numbers. The federal sentencing numbers come from the U.S. Sentencing Commission. They count only people who were convicted and sentenced in federal district court. People whose cases were dismissed or who were acquitted are not in them. The military numbers come from court-martial results, which include acquittals. To compare acquittal or dismissal rates, the federal side uses a different source: the Federal Judicial Center's case data, which counts every defendant whose case ended.

Different cases reach each system. Federal prosecutors bring a narrow set of cases. In fiscal year 2024, immigration and drug trafficking cases were 59% of everyone sentenced in federal court (36,664 of 61,678). Many crimes that the military prosecutes, such as most assaults, most sexual assaults between adults, and drug use, are usually state crimes for civilians and reach federal court only in special situations, such as on federal land or in Indian Country. A federal case and a court-martial for the same crime can involve different kinds of facts.

No parole in federal prison; credit for good conduct. Federal prison has no parole for crimes committed on or after November 1, 1987. A federal prisoner can earn up to 54 days of good conduct credit for each year of the sentence the judge imposed, which is about 15%. Some federal prisoners can also earn First Step Act time credits, but many offenses make a person ineligible. The numbers in this post are the sentences judges imposed, not the time people actually served.

Military confinement credit and parole. For military sentences adjudged after 2004, good conduct time is 5 days for each month of confinement, about 16%. Military prisoners can also earn up to 8 more days a month for work and programs and up to 2 days a month for special acts, with a limit of 15 days a month in total. Military prisoners can be considered for parole by their service's clemency and parole board. The military numbers in this post are the confinement adjudged at trial, not the time served.

Military sentences include punishments federal sentences do not. A court-martial sentence can include a punitive discharge (bad-conduct discharge, dishonorable discharge, or dismissal for officers), reduction in rank, and forfeiture of pay. These have no federal counterpart. A comparison of months of confinement leaves them out. A short confinement term combined with a dishonorable discharge is a heavier sentence than the months alone show.

Time periods. Federal numbers are by federal fiscal year (October 1 to September 30), based on the sentencing date. The military numbers are by trial date. Neither source has the date of the offense, so a change in law shows up in either data set gradually.

Offense categories do not line up exactly. Each comparison uses a federal offense group chosen to match the military article as closely as possible (see the crosswalk). Some matches are close; others are partial. The post says which federal guideline or statute was used and why it is not an exact match.

About the author. Jocelyn C. Stewart is a retired Army JAG with more than 24 years of trying courts-martial and more than 200 jury trials. She hosts Where All The Bodies Are Buried and runs the Law Office of Jocelyn C. Stewart. This analysis is for education and information only. It is not legal advice, and every case is different.

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