United States v. Clifton Mosley

Court of Appeals for the Fourth Circuit·Decided February 23, 2026·No. 21-4541·Published

Opinion

PUBLISHED

UNITED STATES COURT OF APPEALS FOR THE FOURTH CIRCUIT

No. 21-4541

UNITED STATES OF AMERICA, Plaintiff – Appellee,

v.

CLIFTON MOSLEY, Defendant – Appellant.

Appeal from the United States District Court for the District of Maryland, at Baltimore. George Jarrod Hazel, District Judge. (1:17-cr-00667-GJH-2)

Argued: December 12, 2025 Decided: February 23, 2026

Before NIEMEYER, GREGORY, and AGEE, Circuit Judges.

Affirmed by published opinion. Judge Gregory wrote the opinion, in which Judge Niemeyer and Judge Agee joined.

ARGUED: Richard S. Stolker, LAW OFFICES OF RICHARD S. STOLKER, Gaithersburg, Maryland, for Appellant. Jason Daniel Medinger, OFFICE OF THE UNITED STATES ATTORNEY, Baltimore, Maryland, for Appellee. ON BRIEF: Kelly O. Hayes, United States Attorney, OFFICE OF THE UNITED STATES ATTORNEY, Baltimore, Maryland, for Appellee.

GREGORY, Circuit Judge:

Clifton Mosley appeals his conviction by a jury of witness-murder and marijuana trafficking. During trial, the Government presented evidence that Mosley was friends and drug-trafficking partners with Davon Carter and Matthew Hightower. Hightower had been indicted for healthcare fraud and extortion, due to information provided to the authorities by his co-worker Lisa Edmonds. Edmonds was to be a key witness in Hightower’s upcoming trial.

The Government alleges that while Hightower was detained pretrial, Mosley and Carter conspired with Hightower to murder Lisa Edmonds. Witness testimony and phone records show that Mosley and Carler were in communication with Hightower and each other, especially in the days and hours leading up to the murder at issue.

On May 27, 2016, two hours before Lisa Edmonds was due to attend a court hearing, a man chased, shot, and killed her next-door neighbor, Latrina Ashburne. The Government alleges that the shooter, Davon Carter, had mistaken Ashburne for Edmonds. Police found surveillance footage of two cars circling the neighborhood in the hour before the shooting, and eventually traced the cars as being associated with Carter and Mosley.

Carter and Mosley were convicted after a 13-day trial of witness-murder and marijuana trafficking. Mosley now appeals his conviction on three grounds: (1) that his witness-murder charges should have been severed from his marijuana trafficking charges; (2) that cell evidence found on Carter should have been suppressed under the Fourth Amendment; and (3) that there was insufficient evidence for a jury conviction.

Mosley fails to present sufficient grounds to reverse the district court and vacate the conviction. First, the marijuana trafficking is deeply intertwined with the murder charges, because the marijuana trafficking is what connects Carter, Mosley, and Hightower and establishes their relationship as both friends and business partners. Without the marijuana trafficking, the Government could not have proven that Carter and Mosley had motive to kill Hightower’s opposing witness. Second, Mosley lacks standing to bring Fourth Amendment claims for items found on Carter. And third, the evidence at trial was certainly substantial enough for a conviction. For these reasons, we affirm the district court and sustain the jury conviction.

I.

A.

Clifton Mosley was a long-time friend of Matthew Hightower and Davon Carter.

Before and after Hightower’s arrest, the three men sold marijuana together, with some witnesses identifying Mosley as Hightower’s “right-hand man,” “home boy,” and “wingman.”

On June 3, 2015, Hightower was indicted on charges of health care fraud.

Hightower had been working as a delivery driver at RX Resources and Solutions (“RXRS”), a medical equipment company. In 2013, it came to light that RXRS was billing customers for supplies that were never delivered. Lisa Edmonds, Hightower’s coworker, reported this to the U.S. Department of Health and Human Services, eventually leading to Hightower’s indictment.

After the indictment, witnesses and Hightower began to speculate that Lisa Edmonds was the informant. Hightower speculated that Edmonds might even have been recording them. In a recorded jail call on March 15, 2014, Hightower told Carter that the investigation into RXRS “probably all stem[med] from that lady [Edmonds]” who reported some “illegal shit going on.” JA 2387.

On June 17, 2015, Hightower was granted pretrial release subject to certain restrictions, including that he should not have any contact with potential government witnesses. Nonetheless, on July 25, 2015, Hightower emailed Edmonds asking to speak, to which she declined to respond. In October 2015, Edmonds noticed a BMW routinely sitting outside of her house at night. Meanwhile, Hightower also spoke regularly with Mosley and Carter, as evidenced by texts and call history from his cellphone and testimony from witnesses.

On April 19, 2016, a federal grand jury returned a superseding indictment against Hightower, adding charges about extortion that ultimately led to Hightower’s pretrial detention. Hightower was again instructed not to contact government witnesses, specifically including Edmonds.

Hightower did maintain contact with Mosley and Carter. A search of Hightower’s cell later revealed a scrap of paper containing Mosley and Carter’s phone numbers under the names “Cliff” and “Davon.” Witnesses testified that in Hightower’s absence, Carter asserted that he had taken over the drug trafficking business. Witnesses also testified that after Hightower’s imprisonment, they began to buy marijuana through Mosley instead.

Altogether, Mosley and Carter had 148 calls, messages, and other phone communications in May 2016, which were mostly phone calls with several messages coordinating meetups.

On May 16, 2016, Carter and Mosley met in person. They went to breakfast together at IHOP, at which time they received a call from Hightower. During this call, Mosley assured Hightower that he was going to “beat” the charges. He also promised Hightower, “[E]verything going to be good, yo . . . . You know what I mean? I’m gonna hold you down. You know what I mean? On my end.” JA 2407. Importantly, while Mosley was traveling with Carter that morning, Carter got a speeding ticket while driving a 2008 silver Audi with a rear Maryland tag, but was missing a front license plate and instead had a European-style tag.

Mosley and Carter met again on May 17, 2016. This time they included Shayne Bird, who knew Hightower from when they were incarcerated. Bird owned a towing company. Bird testified that during the meeting, Mosley and Carter asked Bird whether he could tow one of Hightower’s Audi’s to Bird’s shop. Bird also testified that he did not agree to do that job because he “didn’t feel comfortable dealing with them anymore.” JA 1329.

Around this time, Carter spoke to his friend Clarence Sampson. Sampson testified that Carter said that “somebody was telling on him [Hightower] and he [Carter] has to handle it.” JA 1031. Then on May 25, 2016, Carter obtained and activated a new burner phone. Using the burner, Carter messaged Mosley and said, “This is Davo, lock me in.” JA 694, 2273.

Late in the evening on May 26, 2016, Mosley woke up his girlfriend and asked her to teach him how to look up cases on the Maryland judiciary’s website. The Government

contends that Mosley was trying to check for Edmond’s address through the state court case information available online. Edmonds was in fact scheduled to appear in court on the next day, May 27, 2016, at 9:30 AM in an unrelated matter. Her home address was fully visible. On the night of May 26, 2016, at 9:13 PM and 10:04 PM, Mosley and Carter had two brief calls.

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