United States v. Mejia
Facts
Mejia participated in a drug-trafficking organization supplying cocaine and fentanyl, taking customer orders, setting prices, and directing couriers. He later entered a cooperation agreement that merged into and supplemented his plea agreement, expressly requiring him to testify whenever requested; after Suazo showed him the cooperation agreement and threatened him, Mejia refused to testify against Suazo. The government then treated the supplemented plea agreement as a nullity, and the district court found Mejia had materially breached it. At sentencing, the court adopted the PSI's drug-quantity estimate based on seizures, intercepted calls, courier and associate information, and also applied a four-level leadership enhancement.
Issue
Whether Mejia's refusal to testify constituted a material breach allowing the government to rescind the supplemented plea agreement, notwithstanding his arguments based on substantial performance and frustration of purpose. Whether the district court procedurally erred in attributing drug quantities to Mejia and in applying a four-level organizer-or-leader enhancement under USSG §3B1.1(a).
Rule
When a supplemented plea or cooperation agreement unambiguously requires a defendant to testify upon request, refusal to do so is a breach; if that promise is an essential and inducing feature of the agreement, the breach is material and releases the government from further performance. The doctrine of substantial performance does not save a party who has materially breached, and frustration of purpose applies only when the non-occurrence of the frustrating event was a basic assumption on which the contract was made. For sentencing, drug quantity may be estimated from historical and anecdotal evidence so long as the estimate is reasoned and supported by a preponderance of the evidence, and a conspirator remains accountable for reasonably foreseeable conspiracy quantities absent affirmative withdrawal. A four-level enhancement under USSG §3B1.1(a) applies when the criminal activity involved five or more participants or was otherwise extensive and the defendant acted as an organizer or leader; multiple leaders may exist.
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