Clemente Javier Aguirre-Jarquin v. Robert Hemmert

Aguirre-Jarquin · United States Court of Appeals for the Eleventh Circuit · November 4, 2025 · No. 23-10811

Summary

The Eleventh Circuit reviews interlocutory appeals arising from Clemente Javier Aguirre-Jarquin’s 42 U.S.C. § 1983 and Florida-law claims against law-enforcement and forensic personnel involved in his murder investigation and prosecution. The court addresses qualified immunity, state-law immunity, evidentiary issues, pendent appellate jurisdiction, and summary judgment, ultimately affirming in part and reversing in part the district court.

Court
United States Court of Appeals for the Eleventh Circuit
Writing for the Court
Tjoflat; Jordan; Lagoa
Jurisdiction
United States Court of Appeals for the Eleventh Circuit
Decision date
November 4, 2025
Docket number
23-10811
Procedural posture
Interlocutory appeals and cross-appeals from orders denying qualified immunity and Florida statutory immunity, together with requests for pendent appellate jurisdiction over other summary-judgment and evidentiary rulings.
Standard of review
De novo review of appellate jurisdiction, summary-judgment rulings, qualified-immunity determinations, and denial of official immunity.
Precedential value
published and precedential
Parties
Robert Hemmert, Jacqueline Grossi, Donna Birks v. Clemente Javier Aguirre-Jarquin, Seminole County Sheriff
Disposition
reversed_and_remanded

Topics

qualified immunityappellate jurisdictionpolice misconductcivil rightsgovernment liability

Practice areas

civil rightsconstitutional lawappellate procedurequalified immunitygovernment liability

Questions Presented

  1. Whether the Eleventh Circuit had interlocutory jurisdiction over the denials of qualified immunity and Florida statutory immunity.
  2. Whether Birks was entitled to qualified immunity on Aguirre's claim that she fabricated inculpatory forensic evidence.
  3. Whether Birks and Hemmert were entitled to qualified immunity on Aguirre's Fourth Amendment malicious-prosecution claim based on the existence of arguable probable cause.
  4. Whether Hemmert and Grossi were entitled to qualified immunity on Aguirre's claim that they conducted a constitutionally inadequate investigation.
  5. Whether Hemmert and Grossi were entitled to immunity under Fla. Stat. § 768.28(9)(a) on Aguirre's Florida intentional-infliction-of-emotional-distress claim.

Holdings

  1. Birks was not entitled to qualified immunity at summary judgment because preexisting Eleventh Circuit precedent clearly established that knowingly fabricating or falsely presenting inculpatory evidence violates due process, and the record created a genuine factual dispute over whether she intentionally bypassed competent verification of the latent-print identification.
  2. Birks and Hemmert were entitled to qualified immunity on Aguirre's Fourth Amendment malicious-prosecution claim because, after correcting the alleged misstatements and omissions in the probable-cause affidavit, arguable probable cause still existed for Aguirre's seizure.
  3. Hemmert and Grossi were entitled to qualified immunity on Aguirre's claim that they violated due process by failing to pursue potentially exculpatory leads because, in 2004, no clearly established law required investigators to pursue every potentially exculpatory lead in the face of substantial inculpatory evidence when they did not harbor serious doubts about the suspect's culpability.
  4. Hemmert and Grossi were not entitled to summary judgment under Fla. Stat. § 768.28(9)(a) because the record created a genuine factual dispute over whether their investigative failures constituted wanton and willful disregard of human rights, safety, or property.

Key quotations

Our decisional law provided such notice. (at 35)
The purposeful failure to properly verify the results of a positive comparison is not mere error or overconfidence in expressing a forensic conclusion; it is the absence of a step required to report incriminating forensic evidence. (at 38)
Probable cause exists when the totality of circumstances within an officer’s knowledge is sufficient to warrant a reasonable belief that the suspect committed a crime. (at 55-56)
Due process does not require that every conceivable step be taken, at whatever cost, to eliminate the possibility of convicting an innocent person. (at 61)

Factual background

Aguirre was convicted and sentenced to death for the murders of Cheryl Williams and Carol Bareis after investigators linked him to the crime through a latent-print identification, blood evidence, and other circumstances. Later investigations concluded that the latent-print identification was erroneous, and post-conviction evidence implicated Samantha Williams, the victims' daughter and granddaughter; the Florida Supreme Court ordered a new trial and the State dismissed all charges in 2018. Aguirre then sued the investigators and latent-print examiner, alleging fabricated evidence, malicious prosecution, constitutionally inadequate investigation, and intentional infliction of emotional distress.

Procedural history

Aguirre sued Hemmert, Grossi, Birks, and the Seminole County Sheriff under 42 U.S.C. § 1983 and Florida law after his murder convictions were vacated and the State dropped all charges. The Middle District of Florida granted some defendants summary judgment, denied qualified immunity to Birks, Hemmert, and Grossi on specified claims, and denied Hemmert and Grossi immunity under Fla. Stat. § 768.28(9)(a). The Eleventh Circuit exercised interlocutory jurisdiction over the immunity rulings and declined pendent jurisdiction over several other issues.

Remand instructions

The court remanded for further proceedings after affirming the denial of qualified immunity to Birks on Count I and the denial of Florida statutory immunity to Hemmert and Grossi on Count VII, reversing the denials of qualified immunity to Birks and Hemmert on Count III and to Hemmert and Grossi on Count IV, and dismissing Aguirre's cross-appeal and portions of the other cross-appeals.

Court Document

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