A Silver Spring man pled guilty Wednesday to being involved in a drug trafficking ring based in the D.C. area. He turned over $1 million in profits from the organization’s activities, including more than half a million in cash.

Keith Gaston, 40, was allegedly one of the leaders of the drug ring, which operated near 7th and O St NW and in Prince George’s County. A three-year FBI and MPD investigation revealed the the ring was trafficking cocaine and marijuana, according to a press release.

Gaston was one of 17 people arrested for conspiracy and other charges, the release said. Police seized $559,068 in cash from his apartment on the day of his arrest. When investigating the ring, they also found half a kilogram of cocaine, one pound of marijuana and two machine pistols, the release said.

Gaston will face a sentence between 10 years and life in prison. Another alleged leader pled guilty in February and will be sentenced in May.