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101 F.4th 1185

Flores v. Henderson

U.S. Courts of Appeals

Decided May 14, 2024

U.S. Courts of Appeals · decided 2024-05-14

Cited by 5 later decisions — most recently June 2025

Applies 42 U.S.C. § 1983 (Civil Rights Act of 1871 / Section 1983 (Ku Klux Klan Act))

Relies on Graham v. Connor · Mitchell v. Forsyth · Pearson v. Callahan

Good law ✅— No negative treatment on recordhow we know

Decided 2024-05-14

View the full empirical analysis of this case →

Appellate Case: 23-1049     Document: 010111049241     Date Filed: 05/14/2024    Page: 1
                                                                                 FILED
                                                                     United States Court of Appeals
                                         PUBLISH                             Tenth Circuit

                       UNITED STATES COURT OF APPEALS                       May 14, 2024

                                                                        Christopher M. Wolpert
                              FOR THE TENTH CIRCUIT                         Clerk of Court
                          _________________________________

  LATARSHA FLORES; SAMUEL JACKSON,
  individually and as representatives of the Estate
  of Shamikle Jackson, and as next friends of
  N.J., successor in interest,

        Plaintiffs - Appellees,
  v.                                                          No. 23-1049

  JUSTIN HENDERSON, individually; KEITH
  MATTHEWS, individually; TONEY
  HANNON, individually; CLARK ORCHARD,
  individually,

        Defendants - Appellants.
                       _________________________________

                      Appeal from the United States District Court
                              for the District of Colorado
                            (D.C. No. 1:20-CV-00618-RBJ)
                        _________________________________

 Heidi J. Hugdahl, Bruno, Colin & Lowe, P.C., Denver, Colorado (David M. Goddard,
 Bruno, Colin & Lowe, P.C., Denver, Colorado; and Julia Bannon, Office of the City
 Attorney, Aurora, Colorado, with her on the briefs) for Defendants-Appellants.

 Kylie M. Schmidt, Ogborn Mihm LLP, Denver, Colorado (Jason B. Wesoky, Ogborn
 Mihm LLP, Denver, Colorado; Kenneth R. Fiedler and James Anderson, Fiedler Injury
 Law, Denver, Colorado; and Penelope L. Clor, Tomazin Law Group, Denver, Colorado,
 with her on the brief) for Plaintiff-Appellees.
                           _________________________________

 Before TYMKOVICH, MATHESON, and BACHARACH, Circuit Judges.
                  _________________________________

 TYMKOVICH, Circuit Judge.
                   _________________________________
Appellate Case: 23-1049    Document: 010111049241        Date Filed: 05/14/2024     Page: 2



        Shamikle Jackson called 911 to report that two people were dead inside an

 apartment and that he was holding others hostage. He said it was a life-threatening

 emergency and that his remaining hostages only had a few minutes left. Aurora

 Police Officers responded to the call and arrived at the scene. They first encountered

 Mr. Jackson’s sister at the apartment door in no apparent distress. She said her

 brother was home but did not know whether anyone inside the apartment was hurt.

        As the officers began to search Mr. Jackson’s apartment, they received a radio

 call that the sister believed Mr. Jackson was alone, unarmed, and might have mental

 health problems. The officers continued down a hallway to the back bedroom. Mr.

 Jackson emerged from the bedroom and advanced toward the officers with a machete.

 He was shot and killed.

        Mr. Jackson’s parents sued the officers under 
42 U.S.C. § 1983
 for using

 unconstitutionally excessive force. The district court denied the officers’ motion for

 summary judgment based on qualified immunity. It concluded a reasonable jury

 could find the officers recklessly created the need to use deadly force, thereby

 unreasonably violating Mr. Jackson’s constitutional rights under clearly established

 law.

        We reverse. The officers had a split second to respond to a deadly threat

 posed by Mr. Jackson. In these circumstances, it was not clearly established the

 officers recklessly created a situation where the use of deadly force was necessary.

 The officers are thus entitled to qualified immunity.



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                                     I.    Jurisdiction

         Plaintiffs first contend we lack jurisdiction over this interlocutory appeal because

 the district court’s denial of summary judgment was based on a disputed issue of material

 fact.

         “[W]e have interlocutory jurisdiction over denials of qualified immunity at the

 summary judgment stage to the extent that they ‘turn[ ] on an issue of law.’” Fogarty v.

 Gallegos, 
523 F.3d 1147
, 1153–54 (10th Cir. 2008) (quoting Mitchell v. Forsyth,

 
472 U.S. 511, 530
 (1985)). “[I]ssues of law are limited to ‘(1) whether the facts that the

 district court ruled a reasonable jury could find would suffice to show a legal violation’

 and ‘(2) whether that law was clearly established at the time of the alleged violation.’”

 Surat v. Klamser, 
52 F.4th 1261, 1269
 (10th Cir. 2022) (quoting Vette v. K-9 Unit Deputy

 Sanders, 
989 F.3d 1154, 1162
 (10th Cir. 2021)). Because of this limitation, we “lack

 jurisdiction to review factual disputes in this interlocutory posture,” Crowson v.

 Washington Cnty. Utah, 
983 F.3d 1166, 1177
 (10th Cir. 2020), and “we are not at liberty

 to review a district court’s factual conclusions,” Fogarty, 523 F.3d at 1153–54. “[I]f a

 district court concludes a reasonable jury could find certain specified facts in favor of the

 plaintiff, we must usually take them as true—and do so even if our own de novo review

 of the record might suggest otherwise as a matter of law.” Surat, 
52 F.4th at 1269

 (citations omitted).

         But there are exceptions. “[W]hen the ‘version of events’ the district court

 holds a reasonable jury could credit ‘is blatantly contradicted by the record,’ we may

 assess the case based on our own de novo view of which facts a reasonable jury could

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 accept as true.” Lewis v. Tripp, 
604 F.3d 1221
, 1225–26 (10th Cir. 2010) (quoting Scott

 v. Harris, 
550 U.S. 372, 380
 (2007)); Packard v. Budaj, 
86 F.4th 859
, 864–65

 (10th Cir. 2023) (same). We “generally limit[] application of the exception to cases

 involving objective documentary evidence, such as video recordings or photographs.”

 Vette, 
989 F.3d at 1164
. See also Thomas v. Durastanti, 
607 F.3d 655, 659
 (10th Cir.

 2010) (“While a court considering a summary judgment motion based upon qualified

 immunity usually must adopt[ ] . . . the plaintiff’s version of the facts, that is not true

 to the extent that there is clear contrary video evidence of the incident at issue.”)

 (internal quotation marks omitted).

        Because some of the key facts underlying the district court’s denial of

 qualified immunity are inconsistent with the video evidence, we need not accept them

 for purposes of our analysis, Heard v. Dulayev, 
29 F.4th 1195, 1202
 (10th Cir. 2022),

 and “we may assess the case based on our own de novo view of which facts a

 reasonable jury could accept as true,” Lewis, 
604 F.3d at 1226
 (citations omitted).

 We therefore accept the district court’s factual findings to the extent such facts are

 not inconsistent with bodycam footage and audio.1

        We always have jurisdiction to review questions of law. Whether we accept a

 district court’s factual findings or not, we can still review (1) whether a reasonable




 1
   The officers contend the district court improperly relied on allegations in plaintiff’s
 unverified complaint. Because the record includes audio and video footage of what
 transpired, we need not reach this claim.

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 jury could find the facts suffice to show a legal violation and (2) whether the law was

 clearly established as to those facts. See Packard, 86 F.4th at 864.

                             II.   Factual Background

       Shortly before 9:00 a.m. on Monday, March 4, 2019, Mr. Jackson placed a 911

 call. He told the dispatcher he was holding people hostage and that two of the

 hostages were already dead. The district court did not make the following findings,

 but audio from the 911 call provides that Mr. Jackson reported a “life-threatening

 emergency” that was “happening now,” claimed to have a machete, said people

 would need medical attention in a few minutes, and that his hostages were tied up

 and “very much” in danger. Exhibit A. He then hung up in the middle of the call.

       Aurora Police Officers Justin Henderson, Keith Matthews, Toney Hannon, and

 Clark Orchard responded to the call at a multi-apartment complex. The officers

 arrived and identified Mr. Jackson’s apartment. He lived with his sister Shaquayla

 Jackson and her minor child.

       His apartment door was open, but he was not in view. When the officers

 announced themselves, a voice from inside responded the officers would have to

 “come and get me.” Exhibit C. Mr. Jackson’s sister then came to the front door.

 The officers asked her who was in the apartment, and she responded that her brother

 was. Although not included in the district court’s findings, the officers then asked if

 anyone inside the apartment was hurt, and she said, “I don’t know.” Id. His sister

 stepped outside the apartment and onto the landing.



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       The officers again announced their presence and entered the apartment. There

 were no signs of violence or disturbance. They first searched the kitchen, and as they

 searched the front bedroom, they received a radio call from Officer Bridget

 Johnson—who stayed outside with Mr. Jackson’s sister. Officer Johnson transmitted

 to the other four officers by radio that the sister reported, “her brother is the only one

 in the apartment, he doesn’t have access to weapons, and he might have mental health

 issues.” Exhibit B. Mr. Jackson was seen for a mental health evaluation a week

 before—a fact known to his sister and family members, but not to the officers. We

 accept as true the district court’s finding that Mr. Jackson was experiencing mental

 health issues.

       After receiving the radio call, the officers formed a line or “stack” behind

 Officer Henderson. Exhibit L. The four officers continued down the hallway toward

 the second bedroom with Officer Henderson first (his handgun drawn), Officer

 Matthews second (taser drawn), and then Officers Orchard and Hannon (no weapons

 drawn). Aplt. App. at 261, 453. When the officers reached the second bedroom

 door, they announced themselves. At this point, the district court determined the

 officers “entered the bedroom in which Mr. Jackson was located,” “corner[ed]” him,

 “shot [him] multiple times and killed him.” Aplt. App. at 464. The district court

 concluded the officers were aware there were no hostages because they had entered

 Mr. Jackson’s bedroom before the shooting. But the bodycam footage tells a

 different story. The officers remained in the hallway, and never entered into nor saw

 inside the bedroom. Officer Henderson tried to kick the bedroom door open, but

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 someone inside seemed to block it. Exhibit C. Within seconds, Mr. Jackson rushed

 from the bedroom and moved toward the officers with a machete in hand. Id.2

 Officer Henderson then shot and killed him in the hallway outside the bedroom door.

                                    III.    Analysis

        Plaintiffs (Mr. Jackson’s parents) brought claims against (1) Officer

 Henderson for excessive force in violation of the Fourth Amendment, and (2) against

 Officers Matthews, Hannon, and Orchard for failure to intervene to prevent the

 deprivation of Mr. Jackson’s rights. The district court denied the officers’ motion for

 summary judgment based on qualified immunity, concluding Officer Henderson

 recklessly created the need to use deadly force in violation of clearly established law,

 and determining the other three officers unreasonably failed to intervene to prevent a

 violation of Mr. Jackson’s constitutional rights. The officers challenge both

 conclusions.

        “We review the district court’s denial of a summary-judgment motion asserting

 qualified immunity de novo.” Wise v. Caffey, 
72 F.4th 1199
, 1205 (10th Cir. 2023)

 (citing Arnold v. City of Olathe, 
35 F.4th 778
, 788 (10th Cir. 2022)). Summary judgment

 is appropriate if “there is no genuine dispute as to any material fact and the movant is

 entitled to judgment as a matter of law.” Fed. R. Civ. P. 56(a). We “view the evidence

 and the reasonable inferences to be drawn from the evidence in the light most


 2
  Plaintiffs admit Mr. Jackson emerged from his bedroom holding a machete, Aple.
 Br. 6, and the machete is visible on the bodycam footage when the officers approach
 Mr. Jackson to perform CPR.

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 favorable to the nonmoving party.” Simpson v. Little, 
16 F.4th 1353
, 1360 (10th Cir.

 2021) (citations omitted).

        “The doctrine of qualified immunity shields officials from civil liability so long as

 their conduct does not violate clearly established statutory or constitutional rights of

 which a reasonable person would have known.” Mullenix v. Luna, 
577 U.S. 7, 11
 (2015)

 (internal quotation marks omitted). Qualified immunity protects “all but the plainly

 incompetent or those who knowingly violate the law.” Malley v. Briggs, 
475 U.S. 335, 341
 (1986). The officers’ “assertion of qualified immunity creates a presumption that

 they are immune from suit.” Perea v. Baca, 
817 F.3d 1198, 1202
 (10th Cir. 2016).

 To overcome this presumption, plaintiffs must show “(1) the officers’ alleged

 conduct violated a constitutional right, and (2) it was clearly established at the time

 of the violation, such that every reasonable official would have understood, that such

 conduct constituted a violation of that right.” Reavis ex rel. Estate of Coale v. Frost,

 
967 F.3d 978, 984
 (10th Cir. 2020) (internal quotation marks omitted).

 “We have discretion to decide ‘which of the two prongs of the qualified immunity

 analysis should be addressed first in light of the circumstances in the particular case at

 hand.’” Wise, 72 F.4th at 1205 (citing Pearson v. Callahan, 
555 U.S. 223, 236
 (2009)).

 “The court must grant the defendant qualified immunity if the plaintiff fails to prove

 either prong.” Arnold, 35 F.4th at 788. Regardless of which prong is addressed,

 plaintiffs have failed to meet their burden under either one.




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                A. Constitutional Violation

        Plaintiffs allege Officer Henderson violated Mr. Jackson’s Fourth Amendment

 rights by using excessive force against him. See U.S. Const. amend. IV. Specifically,

 plaintiffs argue Officer Henderson’s use of deadly force was excessive because he

 recklessly created a situation in which deadly force was necessary.

        “When a plaintiff claims that officers used unreasonable force during a seizure, we

 apply the Fourth Amendment’s objective reasonableness standard.” Arnold, 35 F.4th

 at 788. And “apprehension by the use of deadly force is a seizure subject to the

 reasonableness requirement.” Frost, 
967 F.3d at 985
 (citing Tennessee v. Garner,

 
471 U.S. 1, 7
 (1985)). “Our calculus of reasonableness must embody allowance for the

 fact that police officers are often forced to make split-second judgments—in

 circumstances that are tense, uncertain, and rapidly evolving—about the amount of force

 that is necessary in a particular situation.” Est. of George v. City of Rifle, Colorado,

 
85 F.4th 1300
, 1316 (10th Cir. 2023) (internal quotation marks omitted). “The

 reasonableness of a particular use of force must be judged from the perspective of a

 reasonable officer on the scene, rather than with the 20/20 vision of hindsight.”

 Graham v. Connor, 
490 U.S. 386, 396
 (1989) (internal quotation marks omitted).

 This is a “totality of the circumstances” analysis. Arnold, 35 F.4th at 788 (citations

 omitted).




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         The Supreme Court outlined three factors in Graham to determine whether a use

  of force is reasonable.3 First, we consider “the severity of the crime at issue.” Simpson,

  16 F.4th at 1360–61 (quoting Graham, 
490 U.S. at 396
). Obviously, the situation

  self-reported by Mr. Jackson was a serious crime if true. While the officers

  developed some evidence from Mr. Jackson’s sister, they had every reason to believe

  Mr. Jackson might pose a threat to himself or others.4

         The second Graham factor instructs us to ask whether “the suspect pose[d] an

  immediate threat to the safety of the officers or others.” 
Id.
 This second factor “is

  undoubtedly the ‘most important’ and fact intensive factor in determining the objective

  reasonableness of an officer’s use of force.” Pauly v. White, 
874 F.3d 1197, 1216
 (10th

  Cir. 2017) (citing Bryan v. MacPherson, 
630 F.3d 805, 826
 (9th Cir. 2010)). “This is

  particularly true in a deadly force case, because ‘deadly force is justified only if a

  reasonable officer in the officer’s position would have had probable cause to believe that

  there was a threat of serious physical harm to himself or others.’” Frost, 
967 F.3d at 985

  (quoting Cordova v. Aragon, 
569 F.3d 1183, 1192
 (10th Cir. 2009)). “When an officer

  has cause to believe there is a serious threat to himself or others, the use of deadly force




  3
   “The Graham factors are nonexclusive and not dispositive; the inquiry remains focused
  on the totality of the circumstances.” Estate of George, 85 F.4th at 1316 (quoting
  Palacios v. Fortuna, 
61 F.4th 1248, 1256
 (10th Cir. 2023)).
  4
   Plaintiffs argue the crime at issue would have been falsely reporting an
  emergency—a misdemeanor. Even if we assume that this first factor favors plaintiffs it
  does not change our conclusion.

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  is reasonable.” Arnold, 35 F.4th at 789 (citing Sevier v. City of Lawrence, 
60 F.3d 695, 699
 (10th Cir. 1995)).

         “To determine the seriousness of a threat,” we consider “multiple non-exclusive

  factors, including: (1) whether the officers ordered the suspect to drop his weapon and

  whether the suspect complied with the order, (2) hostile motions made with the weapon

  toward the officer, (3) the distance separating the officer and the suspect, and (4) the

  manifest intentions of the suspect.” 
Id.
 (citing Estate of Larsen ex rel. Sturdivan v. Murr,

  
511 F.3d 1255, 1260
 (10th Cir. 2008)).

         These factors all favor Officer Henderson at the time of the shooting: (1) Mr.

  Jackson refused to comply with police commands to come out and show his hands,

  (2) he charged at the officers with a machete, (3) he was within a few feet of the

  officers when he exited the room, and (4) his manifest intention was to cause harm.

  And plaintiffs concede the situation required deadly force when Mr. Jackson emerged

  from his room with a machete.

         Even though force was justified here at the time it was deployed, our cases

  instruct us that in assessing the second Graham factor, we must also consider whether an

  officer’s “reckless or deliberate conduct during the seizure unreasonably created the need

  to use such force.” 
Id.
 (quoting Allen v. Muskogee, 
119 F.3d 837, 840
 (10th Cir. 1997)).5



  5
   The Supreme Court has not yet adopted the view that reasonableness requires a
  consideration of whether the officers recklessly created the need to use force. Cnty. of
  Los Angeles, Calif. v. Mendez, 
581 U.S. 420
, 429 n* (2017) (declining to address whether
  unreasonable police conduct prior to the use of force should be considered). A circuit

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  “Whether an officer recklessly creates the need to use force is merely one important

  consideration in the totality of the circumstances.” 
Id.
 “The reasonableness of

  Defendants’ actions depends both on whether the officers were in danger at the precise

  moment that they used force and on whether Defendants’ own reckless or deliberate

  conduct during the seizure unreasonably created the need to use such force.” Allen,

  
119 F.3d at 840
 (citing Sevier, 
60 F.3d at 699
). The officer’s conduct “is only

  actionable if it rises to the level of recklessness . . . [m]ere negligen[ce] will not

  suffice.” Pauly, 
874 F.3d at 1220
.

         Although our cases do not precisely define “recklessness” in this context, it

  typically requires a high degree of knowledge that a risk of harm will likely result.

  See Black’s Law Dictionary (11th ed. 2019) (defining “reckless” as “the creation of a

  substantial and unjustifiable risk of harm to others and by a conscious (and

  sometimes deliberate) disregard for or indifference to that risk”); Restatement (Third)

  of Torts: Phys. & Emot. Harm § 2 (2010) (“A person acts recklessly in engaging in

  conduct if . . . the person knows of the risk of harm created by the conduct or knows

  facts that make the risk obvious to another in the person’s situation.”). And for

  section 1983 claims based on the danger-creation theory—liability for the acts of

  third parties—we define recklessness as the conscious disregard of a known or

  obvious risk. See T.D. v. Patton, 
868 F.3d 1209, 1230
 (10th Cir. 2017). The inquiry



  split remains. See, e.g., Arnold, 35 F.4th at 789–90 (noting circuits that consider an
  officer’s reckless conduct and those that do not).

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  stays objective—we ask whether every reasonable officer would know that his or her

  conduct recklessly created an unreasonable risk of harm.

         Plaintiffs argue Officer Henderson provoked the need to use deadly force. The

  district court determined plaintiffs “created a triable issue of fact as to whether the []

  fail[ure] to employ de-escalation tactics to mitigate the risk of provoking a threat of

  deadly force against them was reckless under the second Graham prong.” Aplt. App.

  at 473. The court determined Officer Henderson should not have rapidly advanced

  down the hallway and into the back bedroom, but instead should have retreated or

  tried to talk with Mr. Jackson, after receiving the radio call that Mr. Jackson might

  have been alone, unarmed, and suffering from a mental illness. Id. at 471-73.

         We disagree and conclude Officer Henderson did not recklessly create the need

  to use deadly force. Although “our cases suggest that recklessness is manifested mostly

  by police onslaught at the victim,” Arnold, 35 F.4th at 789 (internal quotation marks

  omitted), it is not reckless for an officer to perform a “protective sweep” of a residence if

  reasonable grounds exist to believe there is “a threat to a civilian’s safety.” Armijo ex rel.

  Armijo Sanchez v. Peterson, 
601 F.3d 1065, 1072
 (10th Cir. 2010). For instance, in

  Armijo ex rel. Armijo Sanchez, Mr. Armijo was suspected of dialing 911 and making a

  bomb threat to his High School. The officers entered his home, proceeded to his

  bedroom, entered the room, and pulled him out of bed. We found the officers did not

  violate Mr. Armijo’s Fourth Amendment rights and were entitled to qualified

  immunity. We held “[t]he need to find and neutralize those behind the threats made the



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  entry reasonable. [And] [] [] the circumstances made a search for the suspect

  reasonable.” 
Id. at 1072
.

        For similar reasons, we cannot conclude that Officer Henderson’s decision to

  proceed down the hallway to Mr. Jackson’s bedroom was reckless. Officer Henderson

  acted under exigent circumstances because he reasonably saw an “immediate need” to

  enter and search Mr. Jackson’s apartment “to protect the lives or safety of . . .

  others.” See, e.g., United States v. Najar, 
451 F.3d 710, 718
 (10th Cir. 2006).

        Mr. Jackson’s 911 call described a life-threatening emergency occurring inside the

  apartment. He claimed two people were dead, that he had a machete, and that his

  hostages only had a few minutes left. And when the officers arrived at the apartment his

  sister was not sure if anyone inside was hurt. Officer Henderson began his search of the

  apartment with information Mr. Jackson may pose a threat to someone inside or at least

  that someone may be hurt. When the officers received the radio call that Mr. Jackson

  was alone, unarmed, and mentally ill, Officer Henderson had to make a split-second

  judgment call—whether to credit this new and inconsistent information or not. A

  reasonable police officer, whether the new information was accurate or not, could have

  wanted to visibly confirm Mr. Jackson was secure and nobody else was in the bedroom

  before retreating. The circumstances would not alert every police officer it would be

  “reckless” to complete the search. Qualified immunity protects officers faced with the

  Hobson’s choice of action or inaction.

        One case is instructive. In Estate of Taylor v. Salt Lake City, we held it was

  reasonable for an officer to continue an investigation despite evidence no crime was

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  taking place. 
16 F.4th 744
, 772-73 (10th Cir. 2021). In that case, an officer

  responded to a report that someone “flashed” a gun. 
Id. at 747
. He saw an individual

  matching the description enter a 7-Eleven convenience store. When the suspect

  exited the store, the officer confronted him. The decedent reached into his waistband

  as if to draw a gun, and he was shot and killed. His estate asserted the officers were

  reckless and unreasonable because they “should have just driven away when they

  observed [the decedent] exit from the 7-Eleven without incident.” 
Id. at 772
 (internal

  quotations omitted). We rejected this argument and found “[w]hile the 9-1-1 call

  reporting a male flashing a gun could have been describing a low-level misdemeanor,

  or even no crime at all, we are not aware of any precedent indicating that a

  reasonable officer would have been obliged to drive away and forgo an investigation,

  and Plaintiffs offer us none.” 
Id. at 773
. Similarly, here, plaintiffs point to no

  precedent that a reasonable officer would forgo a search armed with some knowledge

  of a possible murder or hostage situation even with some conflicting information.

        Officer Henderson’s decision to continue down the hallway was not reckless.

  The risk that Mr. Jackson would rush out of the bedroom with a machete was

  certainly not known or obvious. Officer Henderson faced many unknowns, and it

  was reasonable to continue the investigation to confirm whether anyone in the

  apartment was hurt or in danger. See Jiron v. City of Lakewood, 
392 F.3d 410

  (10th Cir. 2004) (holding it was reasonable for an officer to enter a room where a

  suspect was hiding because she believed she heard the suspect trying to escape

  through a window and was worried about the possible risk to the public if the suspect

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  escaped). At best, Officer Henderson wrongly predicted how Mr. Jackson would

  react as they approached the bedroom. And “[t]o say they should have known the plan

  would create a need to shoot [Mr. Jackson] is to indulge in the very sort of hindsight

  revision the law forbids.” Clark v. Colbert, 
895 F.3d 1258, 1264
 (10th Cir. 2018).

         Finally, the third Graham factor requires us to consider “whether [the suspect] is

  actively resisting arrest or attempting to evade arrest by flight.” Simpson, 16 F.4th

  at 1361 (quoting Graham, 
490 U.S. at 396
)). Mr. Jackson was certainly resisting a

  reasonable investigative detention—he refused to come out, told the officers they

  would have to come and get him, blocked his bedroom door when the officer tried to

  open it, and advanced toward the officers with a machete in hand.

                                             …

         Given the totality of the circumstances, Officer Henderson’s decision to

  proceed down the hallway was reasonable. The situation might have been different

  had the officers retreated or tried to talk to Mr. Jackson through the door, but “[w]e

  cannot answer that question, nor is this kind of retrospective inquiry relevant.” Jiron,

  
392 F.3d at 418
. We conclude “a reasonable officer standing in the shoes of [the

  officer] at the time of his encounter . . . would have felt justified in taking the steps

  that led to the use of deadly force.” Est. of Taylor, 16 F.4th at 773.

                B. Clearly Established

         We separately conclude that, even if we were to assume Officer Henderson used

  excessive force in these circumstances, the law was not clearly established at the time of

  the events.

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         A law is clearly established “if a plaintiff (1) identif[ies] an on-point Supreme

  Court or published Tenth Circuit decision . . . or (2) shows the clearly established

  weight of authority from other courts [has] found the law to be as the plaintiff

  maintains.” Perry v. Durborow, 
892 F.3d 1116
, 1122–23 (10th Cir. 2018)

  (quotations omitted). We do not “define the relevant constitutional right at a high

  level of generality. . . [and] the clearly established law must be particularized to the

  facts of the case.” 
Id. at 1123
 (citations omitted). None of our cases clearly hold that

  a search resulting in an armed confrontation—under these exigent circumstances—

  would violate an individual’s constitutional rights.

         Resisting this, plaintiffs and the district court rely on the following cases as

  clearly establishing Officer Henderson unreasonably violated Mr. Jackson’s rights:

  Sevier v. City of Lawrence, Kan., 
60 F.3d 695
 (10th Cir. 1995);6 Hastings v. Barnes,

  
252 F. App’x 197
 (10th Cir. 2007); and Allen v. City of Muskogee, Okla., 
119 F.3d 837
 (10th Cir. 1997). We discuss each in turn.

         In Sevier, “three police officers arrived at the home of a suicidal twenty-two-

  year-old in the middle of the night, opened the door to his bedroom, and confronted

  him with their guns drawn when he emerged. . . . The victim was not suspected of




  6
    Sevier “merely noted in dicta that deliberate or reckless preseizure conduct can render a
  later use of force excessive before dismissing the appeal for lack of jurisdiction . . . . To
  state the obvious, a decision where the court did not even have jurisdiction cannot clearly
  establish substantive constitutional law.” City of Tahlequah, Oklahoma v. Bond,
  
595 U.S. 9, 13
 (2021).

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  having committed any crime, and the officers had no reason to suspect that he posed

  any threat to others while he remained in his room.” Jiron, 
392 F.3d at 419
 (citing

  Sevier, 
60 F.3d at 698
). It was disputed whether the decedent lunged at the officers

  before he was shot, and we noted the “record reveals some evidence upon which a

  jury could conclude that Defendants acted recklessly by confronting Gregory in the

  manner that they did after knowing that he was armed and distraught over problems

  he was having with his girlfriend, and without gathering more information on the

  situation.” Sevier, 
60 F.3d at 701, n.10
.

        Here, however, the officers responded to a 911 call to investigate someone

  who was suspected of committing a violent crime and believed to pose a threat to

  someone else. In Sevier, the officers responded to a call concerning an individual not

  suspected of committing a crime and believed only to be a danger to himself. Thus,

  Sevier does not clearly establish law for the particularized facts in this case, and we

  cannot say it put a reasonable officer on notice that the conduct in this case violated

  Mr. Jackson’s rights. The current state of Officer Henderson’s knowledge—a violent

  crime may have been committed and that someone else may be at risk inside the

  apartment—materially affects the applicability of the Sevier precedent—a violent

  crime was not committed and no one else was at risk. And even if Officer Henderson

  knew Mr. Jackson was suffering from mental health problems, “the fact that [he] was

  experiencing a psychotic episode cannot itself prevent summary judgment.” Clark v.

  Colbert, 
895 F.3d 1258, 1264
 (10th Cir. 2018).



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        In Hastings, a non-precedential decision, we held the law clearly established

  that “an officer acts unreasonably when he aggressively confronts an armed and

  suicidal/emotionally disturbed individual without gaining additional information or

  by approaching him in a threatening manner (i.e., running and screaming at him).”

  
252 F. App’x at 206
. In that case, the officers conducted a welfare check on an

  individual expressing thoughts of suicide. The officers arrived to find him holding a

  sword, and then “cornered him in his bedroom, issued loud and forceful commands at

  him and pepper-sprayed him, thereby further upsetting [the decedent] and

  precipitating the need to use deadly force.” 
Id. at 206
. He raised his sword toward

  the officers and was shot. We determined the decedent did not pose a threat to

  anyone until the officers unreasonably escalated the situation.

        Here, again, the same key differences emerge: (1) the officers responded to

  Mr. Jackson’s 911 call that a violent crime was occurring, rather than a call

  requesting a welfare check and alleging no violent crime, and (2) the officers did not

  know if Mr. Jackson posed a threat to anyone in his bedroom, whereas the officers in

  Hastings confronted a situation in which the individual was known to be a danger

  only to himself. Thus, Hastings does not clearly establish that Officer Henderson

  acted unreasonably. Again, much like Sevier, Officer Henderson’s knowledge—a

  violent crime may have been committed and that someone else may be at risk—

  materially affects the applicability of the Hastings precedent.

        Lastly, in Allen, the decedent had an altercation with his family and parked in

  front of his sister’s house with a gun. 119 F.3d at 839. The officers were advised

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  that he was armed, had threatened his family, and had threatened suicide. There were

  bystanders on the scene and officers ordered them to step back. The officers

  approached his vehicle, yelled that he drop his gun, and reached inside his car to

  seize the gun and grab his arms. The decedent raised his gun toward the officers and

  was shot. We found “a reasonable jury could conclude on the basis of some of the

  testimony presented that the officers’ actions were reckless and precipitated the need

  to use deadly force.” Id. at 841.

        Allen did not put Officer Henderson on notice his decision to proceed down

  the hallway violated clearly established law. Although the officers in Allen were

  responding to a potentially dangerous crime—they were told he was armed and

  threatened family members—there are key differences: the officers could see the

  decedent, his weapon, and could evaluate exactly what type of threat he posed. Here,

  however, Officer Henderson had not yet encountered Mr. Jackson. Nor did Officer

  Henderson have stable and certain knowledge about whether Mr. Jackson was

  armed—much less what sort of weapon he had. In fact, Officer Henderson received

  conflicting information about whether Mr. Jackson was armed, alone, and whether

  anyone inside the apartment was hurt.

        Thus, the precedent that plaintiffs cite as clearly established law does not

  apply to the facts of this case. In all three cases, the officers knew the suspect was

  armed, knew he did not pose a threat to anyone, or could see him and the weapon.

  This underscores a key difference: in cases when law enforcement officers respond to

  situations involving potentially emotionally disturbed individuals, the applicability of

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  precedent regarding unreasonable escalation turns on the nature of the 911 call and

  the officer’s knowledge of the potential for violence. The officers did not know

  anything for certain because they had not yet encountered Mr. Jackson and were

  given conflicting information that materially influenced what actions would be

  reasonable to take under the circumstances.

         The Supreme Court has “repeatedly told courts not to define clearly established

  law at too high a level of generality,” City of Tahlequah, Okla., 
595 U.S. at 12
, and that a

  clearly established right must be “particularized to the facts of the case,” White v.

  Pauly, 
580 U.S. 73, 79
 (2017). See also City of Escondido, Cal. v. Emmons, 
586 U.S. 38, 42-43
 (2019) (emphasizing the importance of particularized facts especially in the

  context of excessive force).

         Neither the district court nor plaintiffs have identified precedent determining a

  Fourth Amendment violation occurred under similar circumstances. The cases cited

  do not provide fair notice to Officer Henderson that his continued search of the

  apartment, and subsequent use of lethal force, was a violation of clearly established

  law. Instead, it is clearly established that officers may act under exigent

  circumstances when they reasonably see an “immediate need to protect the lives or

  safety of themselves or others.” Najar, 
451 F.3d at 718
. The officers entered and

  searched the apartment based on a reported violent crime, and it is not clearly

  established the officers should have terminated this search when provided with

  conflicting information from a suspect’s family member after the search has begun.



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                C. Failure to Intervene

         Finally, plaintiffs contend Officers Matthews, Hannon, and Orchard failed to

  intervene to prevent Officer Henderson’s violation of Mr. Jackson’s Fourth

  Amendment rights.

         It was clearly established at the time of Mr. Jackson’s death that “[a]n officer

  who fails to intervene to prevent a fellow officer’s excessive use of force may be

  liable under § 1983.” Fogarty, 
523 F.3d at 1162
; see also Estate of Booker v. Gomez,

  
745 F.3d 405, 422
 (10th Cir. 2014) (holding an officer can be liable for violating an

  individual’s “clearly established rights by not taking steps to prevent other deputies’

  excessive force.”). But “for there to be a ‘failure to intervene, it logically follows

  that there must exist an underlying [clearly established] constitutional violation.’”

  Jones v. Norton, 
809 F.3d 564, 576
 (10th Cir. 2015) (quoting Harper v. Albert,

  
400 F.3d 1052, 1064
 (7th Cir. 2005)).

         Because we hold Officer Henderson did not violate Mr. Jackson’s clearly

  established rights, we conclude there was no failure to intervene by the other officers.

                                    IV.    Conclusion

         The officers did not unreasonably violate Mr. Jackson’s Fourth Amendment rights

  under clearly established law and are entitled to qualified immunity. We therefore

  reverse the denial of qualified immunity for the officers.




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