[ DO NOT PUBLISH] 

## In the 

# United States Court of Appeals For the Eleventh Circuit

____________________
No. 22

- 12412
Non

- Argument Calendar

____________________
UNITED STATES OF AMERICA,
Plaintiff

- Appellee,

versus ROMEO XAVIER LANGHORNE,

Defendant

- Appellant.

____________________ Appeal from the United States District Court for the Middle District of Florida D.C. Docket No. 3:19

- cr

- 00218

- HES

- LLL

- 1

____________________ USCA11 Case: 22-12412 Document: 38-1 Date Filed: 05/07/2024 Page: 1 of 62 Opinion of the Court 22

- 12412

Before L UCK , L AGOA , and B RASHER , Circuit Judges.

P ER C URIAM : Romeo Langhorne appeals his 240

- month prison sentence,arguing that it was cruel and unusual under the Eighth Amendment. We affirm.

I. Langhorne pledged his allegiance to ISIS i n 2014

. In late 2018 and early 2019, Langhorne participated in online chatrooms with fellow ISIS supporters and advocated for attacks on “infrastructure, specifically government buildings” at times of day when civilian casualties would be minimized. H e also had an apparent interest in targeting military personnel. After Langhorne shared his interest in creating an explosives instructional video
, he was connected with an undercover federal agent posing as a n ISIS member who offered to help put together the video

. Langhorne worked with that agent to produce iterations of

a video explaining how to make and use explosive material that could be assembled with readily available ingredients. The agent sent Langhorne a draft video but altered the explosive recipe so that it wouldn’t create a combustible product. Langhorne uploaded the video , overlaid with Islamic vocal music, to a publicly viewable video sharing website that he previously used to share ISIS propaganda

. Lan ghorne was arrested and indicted for knowingly attempting to provide material support and resources to a foreign USCA11 Case: 22-12412 Document: 38-1 Date Filed: 05/07/2024 Page: 2 of 622

- 12412 Opinion of the Court 3
terrorist organization , in violation of 18 U.S.C. section 2339B(a)(1). Langhorne pleaded guilty , admitting that he had attempted to create and distribute “ an instructional video intended to teach followers of ISIS how to obtain materials for explosives without arousing suspicion and combine those materials to make an explosive sufficient to destroy specific types of targets .”

At sentencing, t he district court overruled Langhorne’s objections t o the application of the violent act and terrorism guideline enhancements

. The resulting guideline range of thirty years’ to life imprisonment far exceeded the statutory maximum of twenty
ye ars’ imprisonment , and so Langhorne’s guid eline calculation became that twenty

- year statutory maximum. See U.S.S.G. section 5G1.1(a) (“ Where the statutorily authorized maximum sentence is less than the minimum of the applicable guideline range, the statut orily authorized maximum sentence shall be the guideline sentence. ”). Langhorne put a psychologist on the witness stand who testified that Langhorne most likely suffered from ADHD and undiagnosed Asperger’s syndrome
, a syndrome that

ma de him more susceptible to “fundamentalist beliefs, whether it’s ISIS or some other issue[].” Based on th e psychologist’s testimony and cases featuring similar conduct, Langhorne asked for a sentence of just over eight years

. The district court instead imposed the 240

- month guideline

sentence. The district court explained that it decided not to cut anything off Langhorne’s guideline sentence because Langhorne already received a significant “benefit” by pleading guilty and USCA11 Case: 22-12412 Document: 38-1 Date Filed: 05/07/2024 Page: 3 of 64 Opinion of the Court 22

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avoiding the government bringing further c harges that would’ve

carr ied a longer sentence.

II. Langhorne appeal s his sentence on the ground it violates his Eighth Amendment right under the Constitution to be free from excessive punishment. He argues his twenty

- year sentence is grossly disproportion ate to the offense he committed because (1) the explosives instructional video he helped create provided faulty instructions , (2) he advocated for striking targets that would minimize civilian casualties
, and (3) he was suffering from untreated mental health problems at the time of his offense. Langhorne also highlights three out

- of

- circuit cases in which the defendants received lighter sentences for “providing support to terrorist organizations” in ways he argues were “more abhorrent and extreme

. ” See United States v. Van Haften , 881 F.3d 543 (7th Cir. 2018) ; United States v. Banol

- Ramos , 516 F. App’x 43 (2d Cir. 2013) ; United States v. Assi , 428 F. App’x 570 (6th Cir. 2011). Langhorne acknowledges he makes this Eighth Amendment challenge for the first time on appeal
, and so we review it for plain

error. United States v. Flanders , 752 F.3d 1317, 1342 (11th Cir. 2014) (“[W] hen a defendant fails to raise an Eighth Amendment challenge to a sentence in the district court, we review that challenge on appeal for plain error. ”). F or a defendant to succeed on a plain

error challenge to his sentence
, he must show the district court clearly or obviously violate d our precedent, the Supreme Court’s precedent, or “t he explicit language of a statute or rule

. ” United States v. Sosa , 782 F.3d 630, 637 (11th Cir. 2015) (quotation omitted). USCA11 Case: 22-12412 Document: 38-1 Date Filed: 05/07/2024 Page: 4 of 622

- 12412 Opinion of the Court 5
The Eighth Amendment pro hibits the infliction of “c ruel and unusual punishments .” U.S. Const. amend. XVIII

. “S uccessful Eighth Ame ndment challenges in non

- capital cases are exceedingly

rare. ” United States v. Suarez , 893 F.3d 1330, 133 6 (11th Cir. 2018) (quotation omitted)

. “[W]e have never held that a non

- capital sentence for an adult has violated the Eighth Amendment.” Id. “ Outside the context of capital punishment cases, the Eighth Amendment encompasses, at most, only a narrow proportionality principle ” that assess es whether a sentence “is grossly disproportionate to the offense committed.” Id. at 1335

– 36 (quotation omitted ). A sentence within statutory limits generally isn’t grossly disproportionate. United States v. Johnson , 451 F.3d 1239 , 1243 (11th Cir. 2006)

. See also McCullough v. Singletary , 967 F.2d 530, 535 (11th Cir. 1992) (“ [S]evere, mandatory penalties may be cruel, but they are not unusual in the constitutional sense.”). But if the sentence is determined to be grossly disproportionate, then we must “ consider the sentences imposed on others convicted in the same jurisdiction and the sentences imposed for commission of the same crime in other jurisdictions. ” United States v. Bowers , 811 F.3d 412 , 432 (11th Cir. 2016) (citation omitted).
The district court did n o t plainly err in sentencing Langhorne to twenty

- years’ imprisonment , the statutory maximum for his offense. See 18 U.S.C. section 2339B(a)(1)

. That Langhorne’s sentence was within the statutory limits is a general indication that his sentence wasn’t grossly disproportionate. See Johnson , 451 F.3d

at 1243 ( “ Because the district court sentenced [t he defendant] within the statutory limits, he has not made a threshold showing USCA11 Case: 22-12412 Document: 38-1 Date Filed: 05/07/2024 Page: 5 of 66 Opinion of the Court 22

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of disproportionality with respect to his sentence. ”). And he provides no precedent fro m this court or the Supreme Court to support his argumen t

. Without such authority there’s no basis to find the district court committed “clear or obvious error.” Sosa , 782 F.3d at 637 ( quotation omitted). Because Langhorne hasn’t shown the district court imposeda grossly disproportionate sentence, there’s no need for us to examine the sentences imposed for the same offense in the three out

of

- circuit cases Langhorne relies upon. Even so, Langhorne’s actions were serious: he admitted he attempted to crea te and distribute “an instructional video intended to teach followers of ISIS how to obtain materials for explosives without arousing suspicion and combine those materials to make an explosive sufficient to destroy specific types of targets.” His sentence is reasonable as compared

to tho s e for less or similarly “abhorrent and extreme” offenses. Cf. United States v. Gibson , 708 F.3d 1256, 1282

– 83 (11th Cir. 2013) (defendant’s life sentence for conspiracy to possess with intent to distribute cocaine base was reasonable); Suarez , 893 F.3d at 1338 (defendant’s life sentence was reasonable for his attempt to use a weapon of mas s destruction and attempting to provide material support to ISIS)

. III. It was not plain error for the district court to impose the 240

- month guideline prison sentence. We AFFIRM

. USCA11 Case: 22-12412 Document: 38-1 Date Filed: 05/07/2024 Page: 6 of 6