4th Cir.

Gert Jannes Kuiper v. Mario Adalberto Reyes Mena

July 8, 2026 ·25-2232 ·Panel Decision ·Niemeyer · By James Taylor

The Fourth Circuit affirmed the denial of foreign official immunity to a former Salvadoran colonel accused of ordering the extrajudicial killing of Dutch journalists. The court held that violations of jus cogens norms, such as extrajudicial killing, do not constitute sovereign acts protected by immunity under international and domestic law.

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Background

Mario Adalberto Reyes Mena, a former colonel in the Salvadoran Security Forces, ordered an ambush in March 1982 that killed four Dutch journalists, including Jan Kuiper. Gert Kuiper, Jan’s brother, sued Reyes Mena under the Torture Victim Protection Act of 1991 for damages and declaratory relief. Reyes Mena moved to dismiss, claiming foreign official immunity. The district court denied the motion, ruling that the alleged extrajudicial killing violated jus cogens norms. Reyes Mena appealed the denial of immunity.

The court’s reasoning

The court explained that jus cogens norms are peremptory rules from which no derogation is permitted. Violations of these norms, including extrajudicial killing, are not recognized as sovereign acts under international law. Therefore, foreign officials cannot claim immunity for such conduct, even if the acts were performed in an official capacity. The court rejected arguments distinguishing the case from prior precedent or relying on the absence of a statutory exception in the Foreign Sovereign Immunities Act.

under international and domestic law, officials from other countries are not entitled to foreign official immunity for jus cogens violations, even if the acts were performed in the defendant’s official capacity.

Yousuf v. Samantar, 699 F.3d 763, 777 (4th Cir. 2012)

What it means going forward

The ruling ensures that foreign officials accused of atrocities like extrajudicial killing can be sued in United States courts without claiming immunity, reinforcing the principle that such acts are not protected sovereign conduct.