Mark Trujillo, et al. v. City of Chandler, et al.

District Court, D. Arizona·Decided May 1, 2026·No. 2:25-cv-00706·Unknown

Opinion

WO

Mark T rujillo, et al., ) No. CV-25-00706-PHX-SPL ) ) Plaintiffs, ) ORDER vs. ) ) ) City of Chandler, et al., ) ) Defendants. ) ) )

Before the Court is Defendants’ Buenrostro, Diaz, and City of Chandler’s Partial Motion to Dismiss Plaintiffs’ Second Amended Complaint (Doc. 31), Plaintiffs’ Response (Doc. 37), and Defendants’ Reply (Doc. 41), as well as Plaintiffs’ Supplemental Citation of Authority (Doc. 42). For the following reasons, the Court will grant Defendants’ Motion.1 Plaintiffs Mark and Alba Trujillo, on behalf of themselves and their three minor children, bring various claims against Defendants connected to the shooting of Plaintiff Mark Trujillo. (Doc. 29 at 2). On March 3, 2024, Plaintiff Mark Trujillo contacted the Chandler Police Department to notify them that “an unstable next-door neighbor Luciano Gutierrez” had been threatening one of Trujillo’s daughters. (Id. ¶ 1). Defendant Officer

1 Because it would not assist in resolution of the instant issues, the Court finds the pending motion is suitable for decision without oral argument. See LRCiv. 7.2(f); Fed. R. Civ. P. 78(b); Partridge v. Reich, 141 F.3d 920, 926 (9th Cir. 1998). Nicholas Buenrostro and Defendant Officer-In-Training Margaret Diaz (collectively, “Defendant Officers”) reported to the scene with other Chandler Police Department officers. (Id. ¶¶ 2–3). Plaintiff Mr. Trujillo was outside his home as the officers attempted to communicate with Gutierrez. (Id. ¶ 4). “As Gutierrez appeared in his doorway, other officers (besides Buenrostro and Diaz) fired multiple shots at Gutierrez, hitting and knocking him to the ground.” (Id. ¶ 5). Mr. Trujillo began to “hurry across the driveway towards his home as the gunshots ran out.” (Id. ¶ 6). As Mr. Trujillo crossed his driveway, Officer Buenrostro— who had parked down the street several houses away with Officer Diaz—fired a shot at Mr. Trujillo that severed his spinal cord. (Id. ¶ 8). This spinal cord injury paralyzed Mr. Trujillo, and he “will be paraplegic for the rest of his life.” (Id. at 11, ¶ 79). Plaintiffs assert that Defendant Officers Buenrostro and Diaz had an obligation to confirm whether it was safe to shoot before doing so and to confirm the identity of the target before shooting Mr. Trujillo. (Id. at 4). Their alleged failure to meet these obligations gives rise to Plaintiffs’ constitutional claims and tort claims under state statutory and common law. (See generally Doc. 29). Plaintiffs also assert that Defendant City of Chandler (“Defendant Chandler”) is vicariously liable for the tortious conduct of the Defendant Officers. (Id. at 9–12). On February 28, 2025, Plaintiffs filed the present suit. (Doc. 1). On March 25, 2025, Plaintiffs filed the First Amended Complaint (Doc. 8), and the Court granted Defendants’ Partial Motion to Dismiss (Doc. 15) with leave to amend to the claims. (Doc. 27). On September 24, 2025, Plaintiffs filed the operative Second Amended Complaint (“SAC”). (Doc. 29). The SAC brings five claims: (1) Negligence/Gross Negligence against Defendant Officer Diaz and vicarious liability against the City; (2) Assault and/or Battery against the Officer Defendants and vicarious liability against the City; (3) Loss of Consortium against Defendant Diaz and vicarious liability against the City; (4) Unreasonable Seizure in violation of the Fourth Amendment against the Officer Defendants; (5) Loss of Family Relationship in violation of the Fourteenth Amendment against the Officer Defendants. (Id. at 9–14). In Response to the SAC, Defendant Buenrostro filed a Partial Answer to the Battery claim in Count Two and the Fourth Amendment claim in Count Four. (Doc. 30). Defendants then filed a Motion to Dismiss the rest of the claims in the SAC (Doc. 31), which is fully briefed. (Docs. 37, 41, 42). “To survive a Rule 12(b)(6) motion for failure to state a claim, a complaint must meet the requirements of Rule 8.” Jones v. Mohave Cnty., No. CV 11-8093-PCT-JAT, 2012 WL 79882, at *1 (D. Ariz. Jan. 11, 2012). Rule 8(a)(2) requires that a pleading contain “a short and plain statement of the claim showing that the pleader is entitled to relief.” Fed. R. Civ. P. 8(a)(2). A court may dismiss a complaint for failure to state a claim under Rule 12(b)(6) for two reasons: “(1) lack of a cognizable legal theory or (2) insufficient facts under a cognizable legal claim.” In re Sorrento Therapeutics, Inc. Sec. Litig., 97 F.4th 634, 641 (9th Cir. 2024) (citation omitted). A claim is facially plausible when it contains “factual content that allows the court to draw the reasonable inference” that the moving party is liable. Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). Factual allegations in the complaint should be assumed true, and a court should then “determine whether they plausibly give rise to an entitlement to relief.” Id. at 679. Facts should be viewed “in the light most favorable to the non-moving party.” Faulkner v. ADT Sec. Servs., Inc., 706 F.3d 1017, 1019 (9th Cir. 2013). “Nonetheless, the Court does not have to accept as true a legal conclusion couched as a factual allegation.” Jones, 2012 WL 79882, at *1 (citing Papasan v. Allain, 478 U.S. 265, 286 (1986)). The parties do not dispute the Court’s consideration of extrinsic evidence. (See Docs. 29, 31, 37). The Court already addressed this issue in its August 27, 2025 Order. (Doc. 27 at 3–5). The Court will consider extrinsic evidence submitted by the parties in accordance with that Order, and only to the extent that it is relevant to the analysis here. /// A. Count One: Negligence/Gross Negligence Defendants argue that Plaintiffs’ Negligence/Gross Negligence claim against Defendant Officer Diaz, and the vicarious liability claim against the City, fail under Arizona law. (Doc. 31 at 7–10). In Response, Plaintiffs allege that Defendant Officer Diaz “had the duty to intervene to protect [Plaintiff Mark Trujillo] and “[h]er omissions resulted in [Plaintiff Mark Trujillo’s] injury.” (Doc. 37 at 11). As the Court explained in its previous Order, the Arizona Supreme Court has held that negligence claims cannot be based solely on an officer’s intentional use of force. See Ryan v. Napier, 425 P.3d 230, 233 (2018). Specifically, this Court previously explained that Plaintiffs cannot proceed on a negligence claim against Defendant Diaz based on her alleged conduct of allowing Buenrostro to fire. (Doc. 27 at 7). Again, the Court is not aware of any authority allowing a plaintiff to bring a negligence claim based on one officer’s alleged failure to intervene with another officer’s conduct. That is exactly the kind of claim Plaintiffs appear to allege here. The SAC alleges: “By allowing Buenrostro to fire, Diaz was also negligent and/or grossly negligent in working the scene and failed in her duty to protect [Mr. Trujillo], a victim of the unreasonable force used by Buenrostro.” (Doc. 29 at 10, ¶ 67). The SAC cites to Gaudreault v. Municipality of Salem, Mass., 923 F.2d 203, 207 n.3 (1st Cir. 1990) and O’Niell v. Krzeminski, 839 F.2d 9, 11 (2d Cir. 1988). Gaudreault states that a police officer “who is present at the scene and who fails to take reasonable steps to protect the victim of another officer’s use of excessiv

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Mark Trujillo, et al. v. City of Chandler, et al., (D. Ariz. 2026).

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