United States v. Casillas

CourtUnited States Air Force Court of Criminal Appeals
DecidedSeptember 18, 2025
Docket40551
StatusUnpublished

This text of United States v. Casillas (United States v. Casillas) is published on Counsel Stack Legal Research, covering United States Air Force Court of Criminal Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States v. Casillas, (afcca 2025).

Opinion

U NITED S TATES A IR F ORCE C OURT OF C RIMINAL APPEALS ________________________

No. ACM 40551 ________________________

UNITED STATES Appellee v. Nathaniel A. CASILLAS Senior Airman (E-4), U.S. Air Force, Appellant ________________________

Appeal from the United States Air Force Trial Judiciary Decided 18 September 2025 ________________________

Military Judge: Matthew D. Talcott; 1 Jennifer E. Powell (arraignment); Tyler B. Musselman (motions hearing); Christopher D. James. Sentence: Sentence adjudged 26 June 2023 by GCM convened at Osan Air Base, Republic of Korea. Sentence entered by military judge on 11 August 2023: Confinement for 4 years and 11 months, reduction to E-1, and a reprimand. For Appellant: Major Samantha P. Golseth, USAF. For Appellee: Colonel G. Matt Osborn, USAF; Lieutenant Colonel Thomas J. Alford, USAF; Lieutenant Colonel J. Peter Ferrell, USAF; Lieutenant Colonel Jenny A. Liabenow, USAF; Major Vanessa Bairos, USAF; Major Kate E. Lee, USAF; Mary Ellen Payne, Esquire. Before JOHNSON, MASON, and KEARLEY, Appellate Military Judges. Chief Judge JOHNSON delivered the opinion of the court, in which Judge KEARLEY joined. Judge MASON filed a separate opinion concur- ring in part and dissenting in part. ________________________

1 Pursuant to Article 30a, Uniform Code of Military Justice (UCMJ), 10 U.S.C. § 830a. United States v. Casillas, No. ACM 40551

This is an unpublished opinion and, as such, does not serve as precedent under AFCCA Rule of Practice and Procedure 30.4. ________________________ JOHNSON, Chief Judge: A general court-martial composed of officer members convicted Appellant, contrary to his pleas, of one specification of wrongfully possessing child por- nography and one specification of wrongfully viewing child pornography, both in violation of Article 134, Uniform Code of Military Justice (UCMJ), 10 U.S.C. § 934.2 The court members sentenced Appellant to be confined for four years and 11 months, reduction to the grade of E-1, and a reprimand. The convening authority did not modify the findings or sentence, but deferred the reduction in grade and automatic forfeitures until entry of judgment, waived automatic forfeitures for six months or the expiration of Appellant’s term of service for the benefit of Appellant’s dependents, and supplied the language of the ad- judged reprimand. Appellant raises 12 issues on appeal, which we have reworded: (1) whether the Double Jeopardy Clause of the Fifth Amendment3 requires Appellant’s con- victions to be set aside because Appellant was twice tried for the same “mate- rial;” (2) whether Appellant was denied effective assistance of counsel with re- spect to double jeopardy; (3) whether the Government improperly severed known offenses without proof of a manifest injustice; (4) whether the findings are factually insufficient; (5) whether the two specifications are multiplicious; (6) whether Appellant was denied effective assistance of counsel with respect to multiplicity; (7) whether the convening authority impermissibly considered the race and gender of potential court members when detailing members to Appellant’s court-martial; (8) whether the military judge abused his discretion by admitting a redacted entry of judgment from Appellant’s prior court-mar- tial; (9) whether Appellant’s sentence is inappropriately severe; (10) whether the application of the 18 U.S.C. § 922 firearms prohibition to Appellant war- rants correction; (11) whether the record of trial is incomplete; and (12) whether the search of Appellant’s phone violated his rights under the Fourth Amendment.4,5 In addition, although not raised by Appellant, we consider an

2 Unless otherwise noted, all references in this opinion to the UCMJ, the Rules for

Courts-Martial, and the Military Rules of Evidence (Mil. R. Evid.) are to the Manual for Courts-Martial, United States (2019 ed.). 3 U.S. CONST. amend. V.

4 U.S. CONST. amend. IV.

5 Appellant personally raises issue (12) pursuant to United States v. Grostefon, 12 M.J.

431 (C.M.A. 1982).

2 United States v. Casillas, No. ACM 40551

additional issue (13): whether Appellant is entitled to relief for facially unrea- sonable post-trial and appellate delay. With respect to issue (10), we find no relief from this court is warranted. See United States v. Johnson, __ M.J. __, No. 24-0004, 2025 CAAF LEXIS 499, at *14 (C.A.A.F. 24 Jun. 2025) (holding this court is not authorized to modify the 18 U.S.C. § 922 firearm prohibition indication on the staff judge advocate indorsement to the entry of judgment). We have carefully considered issues (3) and (12) and find they warrant nei- ther discussion nor relief. See United States v. Matias, 25 M.J. 356, 361 (C.M.A. 1987). With respect to issue (1), we find relief is warranted with respect to the finding of guilty as to Specification 1 of the Charge, which we set aside, and as to the sentence, which we reassess. In light of our resolution of issue (1), we do not address issues (5), (6), or (9). With respect to issue (8), we find error, and we have taken the potential prejudicial effect into account in our reassessment of the sentence. With respect to the remaining issues, we find no further error that materi- ally prejudiced Appellant’s substantial rights, and we affirm the findings of guilty as to Specification 2 and the Charge, and the sentence, as reassessed.

I. BACKGROUND The case presently under review is Appellant’s second court-martial (Casil- las II). In order to explain the course of that trial and the substance of several issues Appellant has raised on appeal, it is necessary to describe the relation- ship between Casillas II and Appellant’s first court-martial (Casillas I).6 An Internet service provider identified a commercial email account associ- ated with Appellant as containing possible child pornography and contacted the National Center for Missing and Exploited Children (NCMEC). On 6 Feb- ruary 2020, NCMEC then contacted the Air Force Office of Special Investiga- tions (OSI) regarding the account. The emails in question had been sent on or about 7 January 2020 between Appellant and another Air Force member, then- Master Sergeant AC, a married female servicemember stationed in Europe. At the time, Appellant was stationed in the Republic of Korea. On 24 March 2020, OSI agents brought Appellant to their detachment at Osan Air Base, Republic

6 The findings and sentence from Casillas I are presently and separately before this

court for review pursuant to Article 66, UCMJ, 10 U.S.C. § 866.

3 United States v. Casillas, No. ACM 40551

of Korea, for an interview.7 At that time the agents also seized Appellant’s cell phone, an iPhone XR. OSI sent Appellant’s phone to the Department of Defense Cyber Crimes Center (DC3) where a forensic analyst, Petty Officer First Class (PO1) IA, examined it. OSI’s investigations disclosed substantial misconduct by both Appellant and AC.8 As a result, five charges and 22 specifications against Appellant were referred for trial by general court-martial (Casillas I). These specifications in- cluded, inter alia, one specification each of wrongfully possessing and wrong- fully viewing child pornography on Appellant’s iPhone XR between on or about 1 December 2019 and on or about 24 March 2020, in violation of Article 134, UCMJ.

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