10th Cir.

United States v. Jackson

June 16, 2026 ·5:24-CR-00368-J-1 ·Panel Decision ·Gregory A. Phillips · By James Taylor

The Tenth Circuit affirmed a federal sentence for a firearms violation, ruling that a defendant is responsible for firearms sold by co-conspirators during jointly undertaken criminal activity. The court held that the defendant's coordinated actions with his cohorts established the necessary scope for sentencing enhancements under the U.S. Sentencing Guidelines.

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Background

In 2024, federal agents investigated Jaylen Benford for illegally selling firearms. During an undercover operation, Benford and his associates, including Darrius Jackson, sold multiple firearms to agents posing as buyers. Jackson was indicted for felon in possession of a firearm and pleaded guilty. The probation office recommended a sentence based on enhancements for a semiautomatic firearm with a large capacity magazine and for involving three or more firearms, resulting in an advisory guideline range of eighty-four to one hundred five months. The district court varied downward to impose sixty months.

The court’s reasoning

The court reviewed the district court’s legal conclusions de novo and found that Jackson and his co-conspirator Beach engaged in jointly undertaken criminal activity. The court determined that their coordinated travel and mutual awareness of each other’s transactions supported an inference that they jointly undertook the transportation, possession, and sale of multiple firearms. The court noted that the illegal sale of firearms was the whole goal of their actions, making the sales by Beach reasonably foreseeable within the jointly undertaken activity. The court cited Sentencing Commission commentary comparing the situation to drug backpackers who are accountable for the aggregate quantity transported by their group.

Defendants T, U, V, and W are hired by a supplier to backpack a quantity of marihuana across the border from Mexico into the United States. Defendants T, U, V, and W receive their individual shipments from the supplier at the same time and coordinate their importation efforts by walking across the border together for mutual assistance and protection. Each defendant is accountable for the aggregate quantity of marihuana transported by the four defendants.

U.S.S.G. § 1B1.3 n.4(C)(viii)

What it means going forward

The decision clarifies that defendants can be held responsible for the actions of co-conspirators in firearms cases when there is evidence of coordinated criminal activity, even if the defendant did not personally sell every firearm involved.