When does a defendant have the right to have the jury consider a lesser charge — one that carries a lighter sentence — instead of being forced into an all-or-nothing verdict on the most serious count? It’s a question that comes up in drug cases all the time, and a new Third Circuit decision out of the Virgin Islands draws a clear line between a defense theory that deserves a jury instruction and one that simply strains credulity past the breaking point.
The Setup: One Kilogram of Cocaine and a Psycho Bunny
In October 2023, Carlos Gascot Concepcion was at the St. Thomas airport, heading home to Puerto Rico. Customs agents noticed that his large suitcase seemed unusually light when he lifted it — the kind of observation that comes from years of watching how luggage actually moves. An x-ray scan flagged an anomaly. When agents opened the bag, they found a backpack containing a brick of cocaine: vacuum-sealed, plastic-wrapped, padded with wet wipes, and stamped with the brand name “Psycho Bunny.” The block weighed just over a kilogram — 1,009 grams — and it tested at 86.5% purity, which is high.
Concepcion was charged with one count: possession with intent to distribute a controlled substance.
At trial, the government put on a Drug Enforcement Administration agent with nearly 18 years of experience who explained what that kilogram meant in the real world. On St. Thomas, a kilogram of cocaine wholesales for $8,500 to $12,500 but retails for $42,000 to $65,000 once it’s been diluted and broken into smaller quantities. A heavy cocaine user consuming cocaine at a typical rate would take between 100 and 285 days to work through a kilogram. St. Thomas, the agent explained, is a distribution hub — cocaine moves from there to Puerto Rico, not the other way around. And the packaging mattered: cocaine meant for personal use gets sold in small bags, not brick form, not by the kilogram, and not branded with a trafficker’s logo.
Concepcion’s defense? He planned to consume the entire kilogram himself.
To support this theory, he called his father, who testified that Concepcion had used marijuana daily since he was a teenager and spends most of his money feeding that habit. The father had never personally seen Concepcion use any drug other than marijuana. That was the defense case. Concepcion then rested.
The Legal Issue: Lesser-Included Offense Instructions
Here’s the doctrinal backdrop you need to understand why the appeal turned on what it did.
Under Federal Rule of Criminal Procedure 31(c), a jury can convict a defendant of a “lesser-included offense” — that is, a less serious charge that is entirely contained within the more serious one charged. Possession of cocaine is a lesser-included offense of possession with intent to distribute cocaine. The only thing that separates the two charges is intent: simple possession is what it sounds like, while possession with intent to distribute requires proof that the defendant meant to sell or otherwise distribute the drugs.
When a defendant asks for a lesser-included offense instruction — meaning, he asks the judge to tell the jury that they can convict on the lesser charge if they don’t find the elements of the greater one — the court has to decide whether to give it. The legal standard, which the Third Circuit affirmed in United States v. Concepcion, No. 25-1256 (3d Cir. Mar. 10, 2026), is whether “the proof on the element that differentiates the two offenses is sufficiently in dispute.” In plain terms: is the question of intent actually up for debate given what the evidence shows?
If the answer is yes, the defendant gets the instruction. The jury can then choose between the greater and lesser charge. If the answer is no — if the evidence so overwhelmingly points toward the greater offense that no rational jury could seriously entertain the lesser one — the court can refuse the instruction.
What the Third Circuit Held
Concepcion asked the district court to give the jury the simple possession instruction. The district court refused, finding that no rational jury could conclude he lacked intent to distribute. The Third Circuit affirmed.
The panel’s reasoning was simple. Intent to distribute can be inferred from circumstantial evidence, and the quantity of drugs alone can be enough — courts have routinely found that kilogram-quantities of cocaine support the inference without anything else. Here, the court catalogued everything stacked against Concepcion’s personal-use theory: the quantity itself (over a kilo of high-purity cocaine), the brick-form packaging standard to drug distribution, the trafficker’s brand stamped on the product, the transportation route from a known distribution hub to Puerto Rico, and a suitcase conspicuously light on personal effects for someone who supposedly made the trip for legitimate purposes.
Against all of that, Concepcion offered his father’s testimony that he smokes a lot of marijuana. There was no evidence he had ever used cocaine at all.
The Third Circuit also made an important clarification: just putting on some conflicting evidence doesn’t automatically entitle a defendant to a lesser-included offense instruction. The testimony has to be “weighty enough to create a genuine conflict, such that a rational jury could credit it.” Otherwise, defendants could manufacture lesser-offense instructions by putting on thin or speculative evidence to technically create a “conflict” with the government’s case. The instruction is warranted when the jury could rationally convict on the lesser offense — not merely conceivably.
Where I Come Down
The personal-consumption theory was always going to face a steep climb. A kilogram of cocaine is an extraordinary amount for any individual to possess, and when you layer on the brick packaging, the trafficker’s branding, the distribution-hub transportation route, and the complete absence of any evidence that Concepcion even used cocaine — there just wasn’t anything for the jury to grab onto to acquit him of intent to distribute.
What’s worth flagging for practitioners is the clarification the panel provided about what it takes to earn the instruction. The test isn’t whether any scrap of conflicting evidence exists in the record. It’s whether the differentiating element — here, intent — is sufficiently in dispute given the totality of the evidence. Courts aren’t required to tell juries they can pick the lesser charge just because a defendant argues for it. The evidence has to actually support the lesser finding.
That’s a reasonable standard. But this case is also a reminder for defense lawyers: if you’re going to request a lesser-included offense instruction, you need to build a record that actually supports it. A father testifying his son likes marijuana doesn’t create a genuine factual dispute about whether someone planned to personally consume a branded kilogram of cocaine.