Federal Drug Case Details Undercover Cocaine, Fentanyl Buys In McLean

MCLEAN, VA — A Washington, D.C., man is facing federal drug charges following an investigation that included two undercover narcotics purchases in McLean, according to federal court records.

Moussa Konte is accused of possession with intent to distribute 400 grams or more of a mixture containing fentanyl and 500 grams or more of a mixture containing cocaine. A federal arrest warrant was issued Aug. 25 by U.S. Magistrate Judge Zia M. Faruqui in the District of Columbia, court records show. The warrant return indicates Konte was arrested the following day in the District.

The case grew out of an FBI and Montgomery County Police Department investigation into what authorities described as a drug-trafficking conspiracy distributing large quantities of cocaine in Washington and the surrounding metropolitan area.

Undercover Drug Purchases In McLean

According to an FBI special agent's statement of facts, investigators had been looking into another person suspected of narcotics and firearms trafficking. Between July 2025 and June 2026, law enforcement conducted multiple undercover purchases involving cocaine, fentanyl and firearms.

On Oct. 9, 2025, the person under investigation agreed to meet an undercover Fairfax County Police detective in McLean to sell two ounces each of cocaine and fentanyl powder, according to the affidavit.

Investigators said the person traveled from Maryland to McLean while under continuous law enforcement surveillance and exchanged the suspected drugs for $4,000 in government funds. Laboratory testing later identified 61.57 grams of cocaine and 61.43 grams of a carfentanil/fentanyl mixture, according to the court filing.

A second undercover transaction occurred Nov. 18, 2025, when the same person again traveled from Maryland to McLean, investigators said.

During that meeting, the person allegedly showed the undercover Fairfax County detective a large bag of blue pills and another bag containing suspected cocaine. According to the affidavit, the person claimed the first bag contained 10,000 pills and offered them for $1 each. The person also offered to sell a half-kilogram of cocaine for $12,000 or a kilogram for $20,000, according to court records.

The undercover detective ultimately bought about two ounces each of suspected cocaine and fentanyl for $4,000. Laboratory testing identified 56.07 grams of cocaine and 56.17 grams of a fentanyl mixture, according to investigators. A sample of the blue pills did not test positive for a controlled substance.

Investigation Leads To Konte

Investigators said evidence recovered during the broader investigation eventually led them to Konte.

According to the affidavit, authorities found communications between Konte and the other person that they believed involved drug transactions. Investigators also recovered a recorded June 23 FaceTime call in which a person believed to be Konte displayed what appeared to be a kilogram-sized quantity of narcotics and packaging materials, affidavit said.

Authorities obtained a search warrant for Konte's Washington residence and executed it on Aug. 25. Konte, the only person in the apartment, was detained, according to the affidavit.

Investigators reported finding three bags of blue pills weighing approximately 739 grams and suspected of containing fentanyl, along with approximately 934 grams of suspected cocaine. They also seized about three pounds of marijuana, approximately $8,000, a vacuum sealer, digital scale, money counter, kilogram press, handgun magazines and ammunition.

Field tests of the suspected fentanyl and cocaine returned positive results, investigators said.

The FBI agent who submitted the affidavit said the quantities of drugs, their packaging and the other items recovered were consistent with drug distribution rather than personal use. The agent asserted there was probable cause to charge Konte with possession with intent to distribute the fentanyl and cocaine.

The allegations against Konte are accusations, and he is presumed innocent unless proven guilty in court.