United States v. Cooper

Court of Appeals for the First Circuit·Decided August 6, 2026·No. 24-1769·Published

Opinion

United States Court of Appeals For the First Circuit

No. 24-1769

UNITED STATES OF AMERICA,

Appellee,

v.

SHERRIFF COOPER,

Defendant, Appellant.

APPEAL FROM THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF MASSACHUSETTS

[Hon. Nathaniel M. Gorton, U.S. District Judge]

Before

Gelpí, Rikelman, and Aframe, Circuit Judges.

Judith H. Mizner, Assistant Federal Public Defender, District of Massachusetts, for appellant. Randall E. Kromm, Assistant United States Attorney, with whom Leah B. Foley, United States Attorney, was on brief, for appellee.

August 6, 2026 RIKELMAN, Circuit Judge. A jury found Sherriff Cooper

guilty of multiple crimes connected to sex trafficking of a minor,

including forced labor. Cooper now lodges several challenges to

his convictions; he claims that one count of the indictment charged

more than one crime and that the government failed to produce

enough evidence against him at trial. He also contends that he

should have been tried on the forced labor charge in New York, not

Massachusetts, or, at a minimum, that the issue of venue should

have been put to the jury. Although we are unpersuaded by Cooper's

other arguments, we agree that the jury should have decided if

Massachusetts was the proper venue for the forced labor charge.

Thus, we vacate only Cooper's forced labor conviction and remand

for further proceedings.

I. BACKGROUND

A. Relevant Facts

In early 2017, Cooper worked as a security guard at

St. Mary's Center for Women and Children, a Massachusetts

Department of Children and Families (DCF) program for young

mothers.1 At St. Mary's, Cooper -- who was then 30 years

1 Cooper's multiple claims require us to evaluate the record from various perspectives. For Cooper's challenges to the sufficiency of the evidence against him, "we recount the relevant facts as presented at trial in the light most favorable to the jury's verdict, consistent with record support." United States v. Coleman, 149 F.4th 1, 12 (1st Cir. 2025) (citation modified). In analyzing his other claims, "we offer a balanced treatment, in

- 2 - old -- met J.C., a pregnant 15-year-old girl. The two began

communicating, both in person and via text message, and eventually

started a sexual relationship several months later, once J.C.

turned 16 in April.

J.C. gave birth in July 2017 at a local Boston hospital,

accompanied by a St. Mary's staff member. During her hospital

stay, J.C. asked the St. Mary's staff member to meet "her boo"

downstairs to retrieve the food he had brought for her. The staff

member recognized J.C.'s "boo" as Cooper and became concerned about

the relationship. She reported the incident to St. Mary's, which

subsequently filed a "51A" report with DCF -- a report alleging

abuse or neglect of a minor -- against Cooper. See Mass. Gen.

Laws ch. 119, § 51A. DCF conducted an investigation and determined

that the allegation that Cooper sexually exploited J.C. was

"supported."

After giving birth, J.C. briefly returned to St. Mary's

with her child but soon left to live with her mother. Cooper moved

in with her, as they were in a "relationship" by then. While

living together, Cooper became violent with J.C., including

"chok[ing]" her, "chasing [her] in the street with his car," and

"slapp[ing] [her] in [the] face" when he believed that she was

cheating on him.

which we objectively view the evidence of record." Id. (citation modified).

- 3 - In October 2017, DCF took custody of J.C.'s child, and

J.C. subsequently spent several weeks in a mental-health facility.

During those weeks, Cooper sent her letters and bought her a ring.

By December 2017, J.C. had moved to a DCF program for

young mothers in Newburyport, Massachusetts. While J.C. was in

Newburyport, she and Cooper spoke daily and met in person every

week. To prove that she was "loyal" to Cooper, J.C. had sex with

him in his car.

J.C. ran away from the Newburyport program in early 2018

to meet Cooper at a local train station. When J.C. arrived, Cooper

checked her for wires and broke her cell phone. The two then began

living together again, initially with Cooper's aunt in Boston, and

eventually in various other places, including Cooper's car.

After Cooper lost his job driving for Uber in the spring

of 2018, he told J.C. that she could either "go back to DCF" or

"stay with him" and "help him make money" through prostitution.

Cooper brought J.C. to a client and taught her "what to do" and

"what to say" during the sexual encounter. J.C. had sex with the

client, collected $100, and handed the money to Cooper. Cooper

told J.C. that she had "done a good job" and "that it wasn't that

hard." J.C. was barely 17 at the time.

Cooper eventually bought J.C. a disposable cell phone

and taught her how to answer the phone to set up "dates" (a term

for prostitution arrangements), including by describing payments

- 4 - as "donations" or "roses" to avoid detection. He also posted an

advertisement on Backpage -- a website that listed escort and

prostitution services -- using fake pictures and names and listing

the number to the disposable cell phone. After the government

shut down Backpage, J.C. continued to schedule dates with previous

clients who called or texted her on the disposable phone using the

TextNow application.

J.C. testified that, for a period in the spring of 2018,

she went on nearly 10 dates per night and worked almost every night

of the week. Cooper drove J.C. to these dates, waited for her in

his car, and then collected the cash payments from her. If she

did not want to work, Cooper would "hit" her and call her "lazy."

The "dates" continued through May 2018, shortly after J.C. turned

17.2

When J.C. asked Cooper if she could stop engaging in

prostitution, he responded "no[t] until [she] [could] go to the

strip club." According to J.C., Cooper was referring to a strip

club in New York, Junior's Cabaret, which required its performers

to be 18.

Cooper and J.C. traveled to New York on April 30, 2018,

during the time that J.C. was going on "dates" in Massachusetts,

Although J.C. was uncertain of when exactly the "dates" 2

stopped, she testified that she did not engage in prostitution after moving to New York in June 2018.

- 5 - but they presented different accounts of the impetus for this trip.

According to J.C., because she was 17 at the time, Cooper brought

her to New York to obtain a fake ID so that she could work at the

strip club. But the ID they procured in New York did not fool the

security guard at Junior's Cabaret, and he turned J.C. away.

Cooper testified, however, that they traveled to New York to visit

his mother and his two children, not to obtain an ID for J.C.3 For

her part, J.C. acknowledged she and Cooper "hung out with

[Cooper's] kids" and "met his mom" during the trip but maintained

that the purpose of the trip was always to obtain a fake ID.

While Cooper and J.C. were in New York, Cooper posted a

prostitution advertisement on another website, Plenty of Fish.

Cooper brought J.C. on a "date" he arranged through the website,

but J.C. left out of fear of being raped when she encountered

multiple men at the meet-up location.

Cooper and J.C.

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