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884 F.3d 911
9th Cir.
2018
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Background

  • Alejandro Aguilar Diaz, a first-time offender and legal resident of Tijuana, pleaded guilty to importing 10.68 kg of cocaine and 3.6 kg of heroin; sentenced to 46 months after district court denied a U.S.S.G. § 3B1.2(b) minor-role reduction.
  • Facts: Aguilar Diaz participated in three border crossings (one a practice, one with Rodriguez where Rodriguez was arrested, and a final trip where Aguilar Diaz attempted to smuggle drugs and was arrested). He was paid or promised modest fixed fees ($200 for accompanying, then offered $1,000 for a later trip).
  • Aguilar Diaz claimed he believed the cargo was marijuana, had limited knowledge of others involved, had no proprietary interest, and sought a minor-role reduction under Amendment 794 to U.S.S.G. § 3B1.2.
  • The government argued Aguilar Diaz was a trusted courier with multiple roles (scout and courier), compared him to known participants (Rodriguez and Peter), and opposed the reduction.
  • The district court refused to consider hypothetical or unknown participants, compared Aguilar Diaz only to Rodriguez and Peter, adopted the government’s view, and denied the adjustment.
  • The Ninth Circuit vacated and remanded for re-sentencing, concluding the district court relied on incorrect interpretations of § 3B1.2 and Amendment 794 and failed properly to apply the Amendment’s factors.

Issues

Issue Plaintiff's Argument (Aguilar Diaz) Defendant's Argument (Government / District Court) Held
Whether the court must consider all likely participants (including unnamed) when comparing culpability Rojas‑Millan and Amendment 794 allow consideration of other likely participants identifiable by role/location; court should consider unknown participants necessary for the scheme Court limited comparison to known participants (Rodriguez and Peter) and rejected hypotheticals Court: Pre‑Amendment Rojas‑Millan remains consistent with Amendment 794; defendant may show other likely participants with sufficient evidence; district court erred by refusing to consider non‑named participants where supported
Whether the district court had to explicitly list/recite Amendment 794 factors on the record Court should consider the five Amendment 794 factors; their application matters to outcome District court need not tick off each factor; presumed to know law Court: No strict recitation required, but the factors must actually be considered; here the record did not show proper application
Whether courier work or performing an essential role precludes minor‑role reduction Aguilar Diaz argued essential/indispensable role is not dispositive; limited knowledge, fixed small fee, no proprietary interest favor reduction Government argued courier role, multiple crossings, and facilitation of Rodriguez show substantial culpability Court: Performance of an essential role is not dispositive; several Amendment 794 factors (limited knowledge, fixed modest fee, no proprietary interest) weigh in Aguilar Diaz’s favor; remand required
Whether district court abused discretion in denying § 3B1.2(b) reduction Aguilar Diaz: collective factors show he was substantially less culpable than other participants Government: comparison to Rodriguez/Peter shows not substantially less culpable Court: District court relied on incorrect interpretations and government argument; abuse of discretion as applied—vacate and remand for reconsideration under correct standard

Key Cases Cited

  • United States v. Quintero-Leyva, 823 F.3d 519 (9th Cir. 2016) (Amendment 794 clarifies minor‑role comparison is among participants in same scheme and applies retroactively)
  • United States v. Rojas-Millan, 234 F.3d 464 (9th Cir. 2000) (courts must compare defendant to all likely participants supported by evidence, not only named coconspirators)
  • United States v. Gasca-Ruiz, 852 F.3d 1167 (9th Cir.) (standards of review for sentencing guideline application)
  • United States v. Cantrell, 433 F.3d 1269 (9th Cir. 2006) (defendant bears burden to prove entitlement to role‑based adjustment)
  • United States v. Carty, 520 F.3d 984 (9th Cir. 2008) (district courts need not recite each guideline factor on the record)
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Case Details

Case Name: United States v. Alejandro Aguilar Diaz
Court Name: Court of Appeals for the Ninth Circuit
Date Published: Mar 9, 2018
Citations: 884 F.3d 911; 16-50102
Docket Number: 16-50102
Court Abbreviation: 9th Cir.
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