United States v. Concepcion

139 F.4th 242
CourtCourt of Appeals for the Second Circuit
DecidedJune 4, 2025
Docket23-6337-cr(L)
StatusPublished

This text of 139 F.4th 242 (United States v. Concepcion) is published on Counsel Stack Legal Research, covering Court of Appeals for the Second Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States v. Concepcion, 139 F.4th 242 (2d Cir. 2025).

Opinion

23-6337-cr(L) United States v. Concepcion

United States Court of Appeals For the Second Circuit

August Term 2024 Submitted: December 20, 2024 Decided: June 4, 2025

No. 23-6337-cr(L)

UNITED STATES OF AMERICA

Appellee,

v.

MARTIN CONCEPCION

Defendant-Appellant. *

Appeal from the United States District Court for the Southern District of New York No. 19-cr-883 J. Paul Oetken, Judge.

* The Clerk of Court is respectfully directed to amend the caption as set

forth above. 23-6337-cr(L) United States v. Concepcion

Before: CALABRESI, PARK, and NATHAN, Circuit Judges. A jury convicted Martin Concepcion of offenses related to sex trafficking a minor. On appeal, Concepcion raises two arguments. First, he claims that 18 U.S.C. § 1591(c)—which exempts the government from proving that a defendant knew or recklessly disregarded the age of a sex-trafficking victim when the defendant had a “reasonable opportunity to observe” the victim—is void for vagueness. Second, he claims that the district court erred by not providing the jury with a special verdict form. We reject both arguments. Section 1591(c) is not unconstitutionally vague, and the district court did not err in its use of a general verdict form. The judgment of the district court is AFFIRMED.

Bobbi C. Sternheim, Law Offices of Bobbi C. Sternheim, New York, NY, for Defendant-Appellant.

David J. Robles, Sarah L. Kushner, Olga I. Zverovich, Assistant United States Attorneys, for Damian Williams, United States Attorney for the Southern District of New York, New York, NY, for Appellee.

2 23-6337-cr(L) United States v. Concepcion

PARK, Circuit Judge: A jury convicted Martin Concepcion of offenses related to sex trafficking a minor. On appeal, Concepcion raises two arguments. First, he claims that 18 U.S.C. § 1591(c)—which exempts the government from proving that a defendant knew or recklessly disregarded the age of a sex-trafficking victim when the defendant had a “reasonable opportunity to observe” the victim—is void for vagueness. Second, he claims that the district court erred by not providing the jury with a special verdict form. We reject both arguments. Section 1591(c) is not unconstitutionally vague, and the district court did not err in its use of a general verdict form. The judgment of the district court is affirmed.

I. BACKGROUND

A. Factual Background

In October 2019, Martin Concepcion met Camilla Rodriguez— a sixteen-year-old runaway—outside of a Bronx bodega. 1 Along with his roommates Michael Valdez and Ryan Diaz, Concepcion invited Rodriguez to join them at a liquor store and then come home with them. At their apartment, Concepcion and Valdez served Rodriguez drug-laced alcohol, brought her into a bathroom, and filmed themselves having sex with her. Afterward, Concepcion told Rodriguez that she was “part of the group now.”

Concepcion explained to Valdez and Diaz that Rodriguez was “the bag”—i.e., a way to make money. So that same night, the three

“Camilla Rodriguez” is the name under which the victim testified. 1

The parties refer to her as “Minor Victim-1.”

3 23-6337-cr(L) United States v. Concepcion

men set to work prostituting her. They took explicit photographs of Rodriguez and posted them to a website called CityXGuide.com, with Concepcion drafting advertisements, setting prices, and teaching Valdez and Diaz how to upload content. And they messaged directly with interested parties. By the next night, they had lined up four clients.

A sex-trafficking operation ensued. Each night for three weeks, Concepcion, Valdez, and Diaz prostituted Rodriguez to multiple men. They dressed her in lingerie, taught her to screen for police, and took cash from her after each session. They also advertised Rodriguez as part of a “two-girl special” with another prostitute. In total, they solicited more than a thousand clients.

The operation involved violence. While Rodriguez was with clients in Valdez’s bedroom, Concepcion, Valdez, and Diaz waited in the apartment, armed with a gun. After Rodriguez once escaped to a friend, the group sent her threatening text messages and searched for her on the streets. When Rodriguez gave Concepcion “attitude,” he struck her in the face. For his part, Valdez attacked Rodriguez on multiple occasions.

When Rodriguez first met the group, she claimed to be eighteen. But a woman trafficked with her warned Concepcion that Rodriguez “looked young.” Separately, Diaz admitted to Valdez that Rodriguez “give[s] me young vibes.” Suspicious of her age, Concepcion and Valdez eventually asked Rodriguez about her “baby face.” In response, Rodriguez confirmed that she was only sixteen. Still, the operation continued.

4 23-6337-cr(L) United States v. Concepcion

On October 21, 2019, Concepcion and Valdez used an Instagram livestream to flaunt cash earned from their trafficking. While playing with a gun, Valdez accidentally shot Concepcion’s hand. Injured, Concepcion left the apartment and never returned, ending his formal involvement with the operation. But Valdez continued the scheme with other co-conspirators and remained in contact with Concepcion.

Early in November 2019, Rodriguez attempted another escape. But Valdez found her on the street and forced her back to the apartment, where he beat her and threatened to shoot her. For the next several days, Valdez locked Rodriguez inside his bedroom, making her urinate into cups.

On November 7, 2019, law enforcement agents found Rodriguez swollen and bruised. On November 8, Valdez texted Concepcion to “lay low” because “feds ran up in my crib[] . . . for that lil bitch.” Appellee’s Br. at 8. Two days later, officers arrested Valdez and Diaz. But Concepcion remained a fugitive for the next eleven months, until his arrest in October 2020.

B. Procedural History

In April 2022, the government filed a three-count indictment against Concepcion. Count One charged him with sex-trafficking conspiracy, in violation of 18 U.S.C. § 1594(c). Count Two charged him with sex trafficking a minor, in violation of 18 U.S.C. § 1591. And Count Three charged him with conspiracy to use interstate commerce to promote unlawful activity, in violation of 18 U.S.C. § 371.

In July 2022, Concepcion proceeded to trial. After the close of evidence, Concepcion moved for a judgment of acquittal on Count

5 23-6337-cr(L) United States v. Concepcion

Two under Federal Rule of Criminal Procedure 29, arguing that “the government should have to prove that the defendant had knowledge that the victim was 16 years old, and we don’t believe that the government sufficiently can show that.” Appellee’s Br. at 14. The district court denied the motion without prejudice.

At the charge conference, Concepcion objected to language in Count Two stating that the knowledge element of 18 U.S.C. § 1591(c) could be satisfied by actual knowledge that the victim was underage, “reckless disregard” of that fact, or a “reasonable opportunity to observe” the victim.

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139 F.4th 242, Counsel Stack Legal Research, https://law.counselstack.com/opinion/united-states-v-concepcion-ca2-2025.