Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 1 FILED United States Court of Appeals UNITED STATES COURT OF APPEALS Tenth Circuit
FOR THE TENTH CIRCUIT April 20, 2026 _________________________________ Christopher M. Wolpert Clerk of Court UNITED STATES OF AMERICA,
Plaintiff - Appellee,
v. No. 25-7046 (D.C. No. 6:17-CR-00023-RAW-1) THOMPSON CHRISTOPHER KYLE (E.D. Okla.) MANDRELL,
Defendant - Appellant. _________________________________
ORDER AND JUDGMENT * _________________________________
Before MATHESON, MORITZ, and FEDERICO, Circuit Judges. _________________________________
Thompson Mandrell lived in a halfway house while serving the
supervised-release portion of his criminal sentence. A condition of his supervised
release required him to follow the halfway house’s policies. The district court found
he violated that condition based on evidence that he had sexually explicit material on
his phone against halfway-house policy. This appeal requires us to decide if the
court erred in making that finding. We conclude it did not.
We have honored the parties’ request for a decision without oral argument. *
See Fed. R. App. P. 34(f); 10th Cir. R. 34.1(G). This decision is not binding precedent except under the doctrines of law of the case, res judicata, and collateral estoppel. But it may be cited for its persuasive value. See Fed. R. App. P. 32.1; 10th Cir. R. 32.1. Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 2
I
Mandrell pleaded guilty to a federal crime in 2017. He received a prison
sentence followed by a term of supervised release. Shortly after leaving prison for
supervised release, he moved into the halfway house. One condition of his
supervised release required him to “follow all policies and procedures during his stay
at the halfway house.” R. vol. 1 at 16. And one of the halfway house’s policies
prohibited “sexually explicit material on the premises” or in residents’ possession.
R. vol. 2 at 53.
After Mandrell had spent several months at the halfway house, the probation
office alleged he had viewed sexually explicit material on his phone, violating the
halfway-house policy and, in turn, the supervised-release condition requiring
compliance with the policy. At the revocation hearing, a probation officer explained
that Mandrell had monitoring software on his phone that allowed the officer to view
the phone’s contents. Using this software, the officer had viewed images on
Mandrell’s phone of “cartoon depictions of minors engaging in sexually explicit
conduct.” Id. at 39. One image, for example, depicted a “prepubescent blonde
female child passed out” while an adult male put “his penis into her mouth.” Id. at
41. The officer estimated that he saw 800 to 1,000 “obscene” images on Mandrell’s
phone. Id. at 38.
At the end of the hearing, the district court found that Mandrell had violated
the condition requiring him to follow the halfway house’s policies. The court
revoked supervised release.
2 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 3
II
Mandrell says the district court erred in several ways when it found he violated
the supervised-release condition. Most of his arguments assert that insufficient
evidence supported the finding. In addition, he suggests the court committed legal
error by deferring to the halfway house’s claim of a policy violation and by failing to
make a specific finding that images on his phone were sexually explicit.
We review a decision to revoke supervised release for an abuse of discretion.
United States v. Williams, 106 F.4th 1040, 1044 (10th Cir. 2024). A court can abuse
its discretion in two ways relevant here—by committing legal error and by relying on
a clearly erroneous factual finding. See United States v. Alfred, 982 F.3d 1273, 1279
(10th Cir. 2020).
A
We start with Mandrell’s challenges to the sufficiency of the evidence. A
court may revoke supervised release if it finds by a preponderance of the evidence
that the defendant violated a release condition. See 18 U.S.C. § 3583(e)(3). The
preponderance-of-the-evidence standard is satisfied when a fact is more likely than
not. See United States v. Washington, 890 F.3d 891, 896 (10th Cir. 2018). We view
the evidence in the light most favorable to the district court’s finding. See Williams,
106 F.4th at 1047. In short, we ask whether any rational factfinder could have found
a violation by a preponderance of the evidence. See United States v. King, 608 F.3d
1122, 1129 (9th Cir. 2010).
3 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 4
Mandrell first complains that the court never admitted the images themselves,
only descriptions of them. The images themselves were necessary, Mandrell says,
“to show the officer’s testimony was accurate.” Aplt. Opening Br. at 12. Not so.
The district court was free to credit the officer’s testimony describing the images
with or without corroboration. See United States v. Flechs, 98 F.4th 1235, 1243
(10th Cir. 2024) (deferring to the factfinder’s credibility determinations). 1
Even if a mere description of images could suffice in some theoretical case,
Mandrell contends, it did not suffice here. He highlights the government’s failure to
present testimony that he himself downloaded the images, viewed them, or even used
the phone at all. Those missing pieces matter, he insists, because he lived in a
halfway house, an environment affording many other residents access to his phone.
This argument crumbles under our standard of review. Granted, it is at least possible
that another resident downloaded the prohibited images to Mandrell’s phone without
his knowledge. But that possibility did not foreclose a conclusion that Mandrell
himself more likely than not downloaded the images.
For similar reasons, Mandrell can obtain no relief from the officer’s reliance
on monitoring software. Mandrell underscores that the officer never searched the
phone itself; he viewed its contents only through the monitoring software. On top of
1 To the extent Mandrell argues the court erred by crediting a report from the halfway house, that argument fails for the same reason—our review does not permit us to second-guess the court’s credibility determinations. See Flechs, 98 F.4th at 1243.
4 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 5
that, he says, the government offered no evidence that the software worked correctly.
But speculation that the software may have malfunctioned did not prevent a
conclusion that Mandrell more likely than not possessed the images.
Targeting the images themselves, Mandrell insists the government failed to
prove they “met the legal definition of sexually explicit.” Aplt. Opening Br. at 21.
But the officer recited the halfway-house policy twice, neither time mentioning a
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Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 1 FILED United States Court of Appeals UNITED STATES COURT OF APPEALS Tenth Circuit
FOR THE TENTH CIRCUIT April 20, 2026 _________________________________ Christopher M. Wolpert Clerk of Court UNITED STATES OF AMERICA,
Plaintiff - Appellee,
v. No. 25-7046 (D.C. No. 6:17-CR-00023-RAW-1) THOMPSON CHRISTOPHER KYLE (E.D. Okla.) MANDRELL,
Defendant - Appellant. _________________________________
ORDER AND JUDGMENT * _________________________________
Before MATHESON, MORITZ, and FEDERICO, Circuit Judges. _________________________________
Thompson Mandrell lived in a halfway house while serving the
supervised-release portion of his criminal sentence. A condition of his supervised
release required him to follow the halfway house’s policies. The district court found
he violated that condition based on evidence that he had sexually explicit material on
his phone against halfway-house policy. This appeal requires us to decide if the
court erred in making that finding. We conclude it did not.
We have honored the parties’ request for a decision without oral argument. *
See Fed. R. App. P. 34(f); 10th Cir. R. 34.1(G). This decision is not binding precedent except under the doctrines of law of the case, res judicata, and collateral estoppel. But it may be cited for its persuasive value. See Fed. R. App. P. 32.1; 10th Cir. R. 32.1. Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 2
I
Mandrell pleaded guilty to a federal crime in 2017. He received a prison
sentence followed by a term of supervised release. Shortly after leaving prison for
supervised release, he moved into the halfway house. One condition of his
supervised release required him to “follow all policies and procedures during his stay
at the halfway house.” R. vol. 1 at 16. And one of the halfway house’s policies
prohibited “sexually explicit material on the premises” or in residents’ possession.
R. vol. 2 at 53.
After Mandrell had spent several months at the halfway house, the probation
office alleged he had viewed sexually explicit material on his phone, violating the
halfway-house policy and, in turn, the supervised-release condition requiring
compliance with the policy. At the revocation hearing, a probation officer explained
that Mandrell had monitoring software on his phone that allowed the officer to view
the phone’s contents. Using this software, the officer had viewed images on
Mandrell’s phone of “cartoon depictions of minors engaging in sexually explicit
conduct.” Id. at 39. One image, for example, depicted a “prepubescent blonde
female child passed out” while an adult male put “his penis into her mouth.” Id. at
41. The officer estimated that he saw 800 to 1,000 “obscene” images on Mandrell’s
phone. Id. at 38.
At the end of the hearing, the district court found that Mandrell had violated
the condition requiring him to follow the halfway house’s policies. The court
revoked supervised release.
2 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 3
II
Mandrell says the district court erred in several ways when it found he violated
the supervised-release condition. Most of his arguments assert that insufficient
evidence supported the finding. In addition, he suggests the court committed legal
error by deferring to the halfway house’s claim of a policy violation and by failing to
make a specific finding that images on his phone were sexually explicit.
We review a decision to revoke supervised release for an abuse of discretion.
United States v. Williams, 106 F.4th 1040, 1044 (10th Cir. 2024). A court can abuse
its discretion in two ways relevant here—by committing legal error and by relying on
a clearly erroneous factual finding. See United States v. Alfred, 982 F.3d 1273, 1279
(10th Cir. 2020).
A
We start with Mandrell’s challenges to the sufficiency of the evidence. A
court may revoke supervised release if it finds by a preponderance of the evidence
that the defendant violated a release condition. See 18 U.S.C. § 3583(e)(3). The
preponderance-of-the-evidence standard is satisfied when a fact is more likely than
not. See United States v. Washington, 890 F.3d 891, 896 (10th Cir. 2018). We view
the evidence in the light most favorable to the district court’s finding. See Williams,
106 F.4th at 1047. In short, we ask whether any rational factfinder could have found
a violation by a preponderance of the evidence. See United States v. King, 608 F.3d
1122, 1129 (9th Cir. 2010).
3 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 4
Mandrell first complains that the court never admitted the images themselves,
only descriptions of them. The images themselves were necessary, Mandrell says,
“to show the officer’s testimony was accurate.” Aplt. Opening Br. at 12. Not so.
The district court was free to credit the officer’s testimony describing the images
with or without corroboration. See United States v. Flechs, 98 F.4th 1235, 1243
(10th Cir. 2024) (deferring to the factfinder’s credibility determinations). 1
Even if a mere description of images could suffice in some theoretical case,
Mandrell contends, it did not suffice here. He highlights the government’s failure to
present testimony that he himself downloaded the images, viewed them, or even used
the phone at all. Those missing pieces matter, he insists, because he lived in a
halfway house, an environment affording many other residents access to his phone.
This argument crumbles under our standard of review. Granted, it is at least possible
that another resident downloaded the prohibited images to Mandrell’s phone without
his knowledge. But that possibility did not foreclose a conclusion that Mandrell
himself more likely than not downloaded the images.
For similar reasons, Mandrell can obtain no relief from the officer’s reliance
on monitoring software. Mandrell underscores that the officer never searched the
phone itself; he viewed its contents only through the monitoring software. On top of
1 To the extent Mandrell argues the court erred by crediting a report from the halfway house, that argument fails for the same reason—our review does not permit us to second-guess the court’s credibility determinations. See Flechs, 98 F.4th at 1243.
4 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 5
that, he says, the government offered no evidence that the software worked correctly.
But speculation that the software may have malfunctioned did not prevent a
conclusion that Mandrell more likely than not possessed the images.
Targeting the images themselves, Mandrell insists the government failed to
prove they “met the legal definition of sexually explicit.” Aplt. Opening Br. at 21.
But the officer recited the halfway-house policy twice, neither time mentioning a
legal definition (or any definition at all) of the phrase sexually explicit. That
testimony, in the light most favorable to the court’s finding, shows that the
halfway-house policy employed the common meaning of the phrase. And ample
evidence supports a finding that the images on Mandrell’s phone were sexually
explicit under the common understanding of that phrase.
Mandrell also urges us to reverse on the theory that the government failed to
prove the images were added to his phone after he installed the monitoring software.
This argument fails twice over. First, the officer’s testimony supports a conclusion
that all of the images were downloaded after the monitoring software had been
installed. See R. vol. 2 at 60–61. Second, even if the images were on the phone
before Mandrell installed the software, it would not matter. The halfway house
prohibited residents from possessing sexually explicit material; it makes no
difference when a resident acquired the material.
At bottom, Mandrell identifies many ways the prosecution’s case could have
been stronger. Gaps in the prosecution’s case “can certainly be raised by defense
counsel in closing argument. But we have never required the prosecution to present a
5 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 6
perfect case. Reasonable people can make reasonable findings by the preponderance
of the evidence despite our living in an imperfect world.” Williams, 106 F.4th at
1049. In this case, the probation officer’s testimony permitted the district court’s
finding by a preponderance of the evidence that Mandrell violated the condition
requiring him to follow the halfway house’s policies. 2
B
We turn now to what appear to be claims that the district court committed
legal error. We review legal questions de novo. Williams, 106 F.4th at 1044.
The halfway house issued a report outlining Mandrell’s violations of its
policies. As part of its oral ruling, the district court mentioned the report’s
allegations and then said, “So I am finding that at this hearing it has been established
that he did violate” the condition requiring compliance with halfway-house policies.
R. vol. 2 at 64. Mandrell contends that the district court “abdicated its judicial
responsibility by deferring to the halfway house’s determination” that he violated its
policies. Aplt. Reply Br. at 9. In his view, the court failed “to independently
evaluate whether” the images on his phone violated the halfway house’s policies. Id.
2 The government presented evidence that Mandrell violated other halfway-house policies aside from the one prohibiting the possession of sexually explicit material. But the parties focus on the policy prohibiting that material, so we will too. Given our conclusion that sufficient evidence supports the finding that Mandrell violated that policy, we need not consider whether the government presented sufficient evidence that he violated other halfway-house policies. 6 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 7
The record refutes this argument. True enough, a court may not outsource its
factfinding duties to a halfway house. See § 3583(e)(3) (authorizing revocation if the
court finds a violation). But that did not happen here. The court made clear that it
reached its own decision “based on the testimony and the evidence from the” halfway
house. R. vol. 2 at 76.
Mandrell contends the district court erred by finding a violation without
making an antecedent finding that the images on his phone were sexually explicit.
Yet he points to no authority requiring such an antecedent finding. 3 In any event, the
finding is implicit in the ultimate finding of a violation. It is unsurprising that the
court never addressed whether the images were sexually explicit. After all, Mandrell
never took the position at the revocation hearing that the images were not sexually
explicit. And for good reason: That position would have strained credulity given the
descriptions of the images.
3 Contrary to Mandrell’s suggestion, United States v. Caraballo offers no support for his position. See No. 24-5029, 2025 WL 1013449 (10th Cir. Apr. 4, 2025). Caraballo faulted a court for failing to make required findings before imposing a certain supervised-release condition. Id. at *2–3. The case says nothing about a court’s obligations before finding a supervised-release violation. 7 Appellate Case: 25-7046 Document: 43-1 Date Filed: 04/20/2026 Page: 8
* * *
The district court’s judgment is affirmed.
Entered for the Court
Nancy L. Moritz Circuit Judge