WASHINGTON, D.C. – Darryl Dacota Riley, Jr., a 40-year-old previously convicted felon, was sentenced to 120 months in prison for his role as a wholesale supplier of phencyclidine (PCP) in a large-scale drug trafficking conspiracy. The sentencing took place in U.S. District Court, with U.S. Attorney Jeanine Ferris Pirro emphasizing the serious impact of Riley’s operations on the local community, particularly in neighborhoods plagued by violence.
U.S. Attorney Pirro stated, “Riley wasn’t just selling drugs; he was pumping lethal substances into a neighborhood already reeling from violence and daily fear.” The area surrounding the 2900 block of Knox Place, SE, where Riley conducted his business, has faced numerous violent incidents, including five homicides and multiple assaults, robberies, and burglaries within close proximity to his stash house.
Riley, also known as “Slice,” pleaded guilty in February 2026 to conspiracy to distribute significant quantities of PCP, cocaine, and fentanyl, in addition to unlawful possession of a firearm by a convicted felon. Judge Timothy J. Kelly, who presided over the case, also mandated five years of supervised release following his prison term. Federal prosecutors had sought a slightly longer sentence, reflecting the severity of the crimes and their implications for public safety.
The investigation into Riley’s activities began in the summer of 2024, led by the FBI Washington Field Office, which uncovered his extensive drug distribution network. Court documents revealed that Riley supplied PCP and other narcotics to a co-defendant for redistribution, often traveling to Knox Place to deliver the drugs personally. Law enforcement executed a search warrant at Riley’s residence in August 2025, recovering over 930 grams of cocaine, nearly 120 grams of fentanyl, and three loaded firearms, including a homemade rifle.
Riley’s conviction underscores ongoing efforts by law enforcement to combat drug-related violence in the District of Columbia. The case was prosecuted by Assistant U.S. Attorneys Matthew W. Kinskey and John Crabb, highlighting the collaborative efforts between the FBI, the Drug Enforcement Administration, and the Metropolitan Police Department in addressing drug trafficking and its associated violence in D.C.
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