Striking a Witness’s Testimony as a Sufficient Remedy for a Mid‑Trial Brady Disclosure (and Upholding Broad-Search/Narrow-Seizure Digital Warrants)

1. Introduction

In United States v. Melvin Canales Saldana (consolidated with appeals by Jairo Gustavo Aguilera Sagastizado and Manilester Andrade Rivas), the Fourth Circuit reviewed convictions arising from a six-day MS-13/STLS gang trial in the Eastern District of Virginia involving two killings (Antonio Smith and Eric Tate) charged as violent crimes in aid of racketeering (VICAR). Although the decision is unpublished and “not binding precedent,” it is a highly instructive application of (i) remedial discretion for mid-trial Brady/Giglio disclosure problems, (ii) Fourth Amendment warrant particularity in digital searches of phones and cloud accounts, (iii) sufficiency of evidence for VICAR conspiracy to murder where the victim is initially unidentified, and (iv) accomplice liability despite the absence of a principal’s conviction.

Key issues included: whether a district court must declare a mistrial/new trial for a belated disclosure of impeachment information about a cooperating witness (Molina); whether warrants for phones and cloud storage were supported by probable cause and sufficiently particular; whether evidence supported convictions for conspiracy and murder under Virginia law; and whether a challenged jury instruction on “conspiracy to commit first- or second-degree murder” required reversal.

2. Summary of the Opinion

The Fourth Circuit affirmed all challenged rulings and convictions. It held:

  • The district court did not abuse its discretion in curing the claimed Brady violation by striking Molina’s testimony and instructing the jury to disregard it, rather than declaring a mistrial or granting a new trial.
  • Digital warrants for Canales’s phones and cloud-based accounts were supported by probable cause and sufficiently particular under the Fourth Circuit’s endorsed two-step digital process (broad search/extraction followed by limited seizure tied to enumerated crimes), consistent with United States v. Zelaya-Veliz and United States v. Cobb.
  • The evidence was sufficient to convict Andrade of VICAR conspiracy to murder even though the conspirators initially sought an unidentified target; and sufficient to convict Canales of VICAR conspiracy and VICAR murder (aiding and abetting) and to support the special sentencing finding.
  • The jury instructions, viewed as a whole, adequately conveyed the intent requirements for conspiracy; any arguable misstatement did not mislead the jury to Andrade’s prejudice.

3. Analysis

A. Precedents Cited

1) Trial posture, standards of review, and deference to verdicts

  • United States v. Sanders: Used for the orientation that facts are viewed “in the light most favorable” to the prevailing party on suppression and at trial.
  • United States v. Bailey and United States v. Buster: Provided the suppression review framework (de novo for legal rulings, clear error for facts; and government-favorable view of facts on appeal).
  • United States v. Freitekh, United States v. Murphy, and United States v. Penniegraft: Supplied the “substantial evidence” standard and the appellate instruction to assume the jury resolved testimonial contradictions for the government.
  • United States v. Contreras and United States v. Keene: Framed VICAR’s core requirements and the gang-enterprise context.

2) Brady/Giglio doctrine and remedies

  • Brady v. Maryland: Anchored the duty to disclose material, favorable evidence.
  • Giglio v. United States and Wearry v. Cain: Confirmed impeachment evidence is within the Brady rule.
  • United States v. Bagley: Reinforced that suppression of impeachment evidence is as serious as suppression of direct exculpatory evidence.
  • United States v. Savage: Provided local articulation of Brady and noted the separate Jencks regime.
  • United States v. Wilson: Supplied abuse-of-discretion review for mistrial/new trial requests tied to late Brady disclosure.
  • United States v. Sterling and United States v. Russell: Addressed the “effective use” concept—late disclosure violates due process if it prevents meaningful use. Sterling also supported the district court’s discretion to select sanctions for such violations.
  • United States v. Saint Louis and United States v. Wallace, plus Richardson v. Marsh: Underpinned the central move of the opinion: appellate courts generally presume juries follow curative instructions, which can eliminate prejudice and foreclose mistrial/new trial.

3) Digital warrants: probable cause, particularity, and the “two-step” approach

  • United States v. Lowers: Recognized the Fourth Amendment warrant requirement for searches and seizures of cloud-based accounts and their digital files.
  • Kentucky v. King: Restated that warrants require probable cause and particularity.
  • Illinois v. Gates and United States v. Blakeney: Defined probable cause as a “fair probability” evidence will be found in a place.
  • Maryland v. Garrison: Expressed the anti-“wide-ranging exploratory search” purpose of particularity.
  • United States v. Zelaya-Veliz and United States v. Cobb: Supplied the opinion’s key digital-search framework: officers may obtain/search broad datasets but may seize only evidence tied to enumerated crimes; this structure confines discretion and supports particularity.
  • United States v. Williams: Justified cursory examination of many digital items to determine relevance.
  • United States v. McCall (11th Cir.): Used (through quotation and adoption of reasoning) to describe time-based limits as a “preferred method” for narrowing digital warrants, while acknowledging subject-matter limits as another tool.

4) Virginia conspiracy, intent, and accomplice-liability authorities (as incorporated via VICAR)

  • Cartwright v. Commonwealth and Amato v. Commonwealth (quoting United States v. Godel): Supported proving conspiracy by concerted action and inferring a common plan from a “development and collocation of circumstances.”
  • Gray v. Commonwealth and Winston v. Commonwealth: Supplied the “specific intent” nature of Virginia conspiracy and the definition of specific intent.
  • Holloway v. United States (as applied in United States v. Simmons): Supplied the “conditional intent” concept (“intent to kill, in the alternative, is nevertheless an intent to kill”).
  • Vasquez v. Dotson and Hancock v. Commonwealth: Supported that conspiracy is an agreement to commit a future murder (which may never occur) and that intent may be inferred from the immediate, direct, necessary consequences of voluntary acts (here, supplying a gun to a roaming would-be killing team).
  • Frye v. Commonwealth and Rollston v. Commonwealth: Defined Virginia aiding-and-abetting routes—overt assistance or shared criminal intent (including prior communication of shared purpose).
  • United States v. Louthian and United States v. Thomas: Foreclosed attacks based merely on inconsistent verdicts among co-defendants.
  • Yates v. United States: Distinguished; it concerned invalid theories due to improper charging, not present here.
  • Sult v. Commonwealth and Dusenbery v. Commonwealth: Explained that an accomplice conviction requires proof that a principal committed the offense, but does not require the principal’s conviction as a prerequisite.
  • Rhodes v. Commonwealth: Provided the distinction between first-degree murder (premeditation/specific intent to kill) and second-degree murder (no premeditation requirement).

5) Jury-instruction review

  • United States v. McCabe: Gave the standard of review (abuse of discretion for giving an instruction; de novo for legal correctness).
  • Cupp v. Naughten: Required instructions to be evaluated as a whole, not in isolation.
  • United States v. Askew (quoting Noel v. Artson): Guided the “overall charge” inquiry—whether the jury was adequately informed of controlling principles.
  • United States v. Mogavero: Distinguished; it involved burden-shifting error not cured by general burden instructions, whereas here the court repeatedly required intent.

B. Legal Reasoning

1) Remedying the mid-trial Brady issue: striking testimony + curative instruction

The claimed violation concerned the government’s delayed disclosure of a tipster’s identity and contact information that could impeach cooperating witness Molina, whose credibility mattered (including because he had given inconsistent accounts about a different double murder). The district court found a Brady problem and opted for a targeted cure: strike Molina’s testimony and instruct the jury to disregard it.

On appeal, the Fourth Circuit treated prejudice as the decisive question under United States v. Saint Louis. By removing Molina’s testimony from the case, the court eliminated the functional need for defendants to “effective[ly] use” the impeachment evidence under United States v. Sterling; defendants were no longer facing a credibility contest with Molina because the jury was told not to consider him at all. The panel then invoked the strong presumption—Richardson v. Marsh—that jurors follow such instructions. Because appellants could not overcome that presumption with a concrete showing that the jury nevertheless relied on Molina, the district court’s refusal to grant mistrial/new trial fell within its discretion.

2) Digital warrants: validating broad search authority when seizure is tethered to enumerated crimes

Canales attacked the warrants as overbroad because they permitted a “sweeping” search of the entire contents of phones and cloud accounts. The Fourth Circuit’s answer was structural: it framed the warrants as implementing the now-familiar digital execution model endorsed in United States v. Zelaya-Veliz and United States v. Cobb: investigators may need to acquire and search broadly to locate responsive evidence, but their authority to seize is constrained to “fruits, evidence, or instrumentalities” of enumerated offenses.

The opinion also acknowledged a real limit: digital warrants can fail particularity if they are not narrowed by a “relevant time” connection or other scoping methods, citing United States v. McCall as quoted in United States v. Zelaya-Veliz. But the court found no such defect here, concluding probable cause and particularity were satisfied.

3) Conspiracy to murder with an initially unidentified victim

Andrade’s principal sufficiency claim was conceptual: because the group allegedly set out to kill “someone” and selected Tate opportunistically, he argued there was no conspiracy to kill Tate. The Fourth Circuit relied on Virginia conspiracy doctrine—agreement plus concerted action—through Cartwright v. Commonwealth and inference principles in Amato v. Commonwealth (quoting United States v. Godel). It accepted that a conspiracy may begin with an agreement to commit a particular unlawful objective (a murder) even before the target is identified, and that Tate became the object of the conspiracy when the conspirators converged on him and acted together to accomplish the shared end.

4) Conditional intent and MS-13 “procedures”

Canales argued that he lacked specific intent because he only approved killings of identified rivals per gang procedure and he was not present at the murder. The court’s intent analysis had two moves. First, it treated intent as potentially “conditional” under United States v. Simmons (quoting Holloway v. United States): an intent to kill if a condition is met is still an intent to kill. Second, it used circumstantial proof to show intent: supplying a gun to a crew that would “search the streets looking for someone to kill” supported an inference that Canales intended the immediate and necessary consequences of that act under Hancock v. Commonwealth.

5) Aiding and abetting without a principal’s conviction; inconsistent verdicts

For the VICAR murder count and special sentencing finding (aiding/abetting), the court applied Frye v. Commonwealth and Rollston v. Commonwealth: assistance or shared intent can suffice, including communicated shared purpose. It then rejected two “verdict-structure” arguments:

  • Inconsistent verdicts across defendants do not invalidate a conviction (United States v. Louthian quoting United States v. Thomas).
  • No principal convicted is not fatal so long as evidence establishes that someone committed the principal offense (Sult v. Commonwealth; Dusenbery v. Commonwealth). The court pointed to evidence that Arevalo (tried later) shot Tate and that the jury could have viewed Andrade’s actions as self-defense while still finding a principal murder by another shooter.

6) Jury instructions: “conspiracy to commit first- or second-degree murder”

Andrade challenged a phrasing that required intent to commit “first-degree murder or second-degree murder,” arguing Virginia recognizes conspiracy as a specific-intent crime and second-degree murder lacks premeditation (citing Rhodes v. Commonwealth). The Fourth Circuit did not definitively resolve the state-law nuance; instead it applied Cupp v. Naughten and United States v. Askew to hold that, read as a whole, the instructions repeatedly required a knowing, deliberate agreement and an intent to murder the particular decedent. It distinguished United States v. Mogavero because that case involved burden-shifting, not a potentially awkward formulation within otherwise correct, repeated element instructions.

C. Impact

1) Practical guidance on Brady remedies

Even though unpublished, the opinion underscores a consequential trial-management principle: when the government’s late disclosure primarily affects the credibility of a witness, a district court may, in an appropriate case, neutralize prejudice by removing the witness from the evidentiary picture entirely (striking testimony with a strong curative instruction), rather than opting for the most disruptive remedy (mistrial/new trial). The decision reinforces that appellate review will often turn on (i) whether the remedy restores the defendant’s ability to fairly litigate guilt, and (ii) whether any remaining prejudice can be presumed cured under Richardson v. Marsh.

2) Continued normalization of the “broad search, narrow seizure” model in digital warrants

The opinion strengthens (as an application) the Fourth Circuit’s trajectory in United States v. Zelaya-Veliz and United States v. Cobb: warrants may authorize comprehensive searching of digital repositories so long as seizure authority is tethered to enumerated crimes and execution is structured to confine discretion. It also signals that litigants attacking digital warrants should focus on concrete deficiencies—especially missing or irrational time limitations—rather than the mere fact that large volumes were searched.

3) VICAR prosecutions using state-law predicates: flexibility on victim identification and intent proof

The conspiracy holding is significant for gang and group-violence prosecutions: an agreement to commit a murder can exist before a specific victim is selected, and the victim can become fixed as conspirators act together toward the shared objective. Likewise, the conditional-intent analysis provides prosecutors a path to prove specific intent even where internal gang “rules” purportedly cabin authorization—especially when evidence shows those rules have exceptions and the defendant facilitated an armed search for a target.

4) Accomplice liability resilient to charge/conviction asymmetries

The aiding-and-abetting analysis confirms a familiar but often litigated point in multi-defendant shootings: an accomplice’s conviction may stand even if a co-defendant is acquitted, and even if no one in the same trial is convicted as principal, so long as the evidence shows the offense was committed by someone.

4. Complex Concepts Simplified

  • Brady/Giglio evidence: information the government must disclose that helps the defense—either because it tends to show innocence (exculpatory) or because it can be used to attack a witness’s credibility (impeachment).
  • Materiality / “effective use”: late disclosure violates due process when it comes too late for the defense to use it meaningfully at trial (United States v. Sterling).
  • Curative instruction: a judge’s directive telling jurors to ignore certain evidence. Appellate courts generally assume jurors comply (Richardson v. Marsh).
  • Probable cause: a fair probability that evidence of a crime will be found in the place to be searched (Illinois v. Gates; United States v. Blakeney).
  • Particularity: the warrant must limit what officers may seize so the search does not become a general rummaging expedition (Maryland v. Garrison).
  • Two-step digital search: officers may need to collect/search broadly across digital data to locate responsive items, but may seize only what falls within the warrant’s crime-tethered categories (United States v. Zelaya-Veliz; United States v. Cobb).
  • Conditional intent: intending to kill if a condition is met is still intent to kill (United States v. Simmons quoting Holloway v. United States).
  • Aiding and abetting: helping or encouraging a crime, or sharing the perpetrator’s intent; the principal need not be convicted so long as the crime was committed by someone (Frye v. Commonwealth; Dusenbery v. Commonwealth).

5. Conclusion

The Fourth Circuit’s decision affirms MS-13 VICAR convictions while delivering four practical lessons: (1) a district court may cure a mid-trial Brady/Giglio problem by striking the affected witness’s testimony and issuing a clear disregard instruction; (2) digital warrants may survive overbreadth attacks when they implement the circuit-approved broad-search/narrow-seizure structure and remain meaningfully bounded; (3) conspiracy to murder under Virginia law can be proven even if conspirators initially agree to kill an unidentified target and later select the victim through concerted action; and (4) accomplice liability does not collapse merely because a co-defendant is acquitted or because no principal is convicted in the same trial, so long as the evidence shows a principal offense occurred.