WASHINGTON - Darryl Dacota Riley, Jr., 40, a previously convicted felon residing in the District of Columbia, was sentenced today in U.S. District Court to 120 months in prison in connection with his role as a wholesale PCP supplier in a large-scale narcotics trafficking conspiracy, announced U.S. Attorney Jeanine Ferris Pirro.

"Riley wasn't just selling drugs in the summer of 2024, he was pumping lethal substances into a neighborhood already reeling from violence and daily fear," said U.S. Attorney Pirro. "His operation sat at the center of a zone where families were living through murders, armed assaults, robberies, and break-ins within steps of his stash house. This sentence delivers accountability for the violence his trafficking fueled, the fentanyl and PCP he chose to sell, and the firearms he kept ready to defend his profit. To every parent and resident of D.C.: we have your back. Drug traffickers will be caught, charged, and face federal prison time."

Riley, also known as "Slice," pleaded guilty on Feb. 12, 2026, before Judge Timothy J. Kelly to conspiracy to distribute and possess with intent to distribute one kilogram or more of phencyclidine (PCP), 500 grams or more of cocaine, and 40 grams or more of fentanyl; and to unlawful possession of a firearm by a convicted felon. In addition to the 120-month prison term, Judge Kelly ordered Riley to serve five years of supervised release. Federal prosecutors had requested a 121-month prison term, followed by five years of supervised release.

According to court documents, in the summer of 2024, FBI agents initiated a long-term investigation of a drug trafficking conspiracy centered around the 2900 block of Knox Place, SE. Law enforcement had identified an alleged fentanyl and PCP trafficker in the 2900 block of Knox Place. Over the course of their investigation into the trafficker's narcotics suppliers, investigating agents determined that Riley was conspiring with members of the drug trafficking operation in the redistribution of cocaine, PCP, fentanyl, among other narcotics.

During the conspiracy, five homicides, seventeen assaults with dangerous weapons, five robberies and eight burglaries occurred within 1,000 feet of the conspiracy's primary stash location on Knox Place SE, court papers state.

According to court papers, from July 2024 through his arrest in August 2025, Riley served as a wholesale supplier of PCP to a co-defendant who redistributed narcotics from the 2900 block of Knox Place SE. Riley repeatedly supplied bulk quantities of liquid PCP for redistribution, at times traveling to Knox Place to personally deliver the drugs, which he referred to in intercepted calls as the "Deer Park."

On August 26, 2025, FBI agents executed a search warrant at Riley's residence in the 1900 block of Naylor Road, SE. Over the course of the search, law enforcement recovered more than 930 grams of cocaine and nearly 120 grams of fentanyl, amongst other narcotics, more than $20,000 in cash, and three loaded firearms, including a privately made rifle.

Riley has a previous 2012 conviction for attempted possession with intent to distribute a controlled substance.

The investigation was conducted by the FBI Washington Field Office, with valuable assistance from the Drug Enforcement Administration - Washington Field Office, and the Metropolitan Police Department.

The matter was prosecuted by Assistant U.S. Attorneys Matthew W. Kinskey and John Crabb of the Violent Crime and Narcotics Trafficking Section.

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