Rapper AR-Ab has been convicted of running a large-scale North Philly drug trafficking operation and has been implicated in at least two killings.

According to several reports, AR-Ab, he received guilty verdicts on several counts, including conspiracy and distribution of crack cocaine, heroin and methamphetamine.

“West and his crew transported illegal narcotics across the country to push here on our streets,” Special Agent in Charge of the FBI’s Philadelphia Division Michael T. Harpster said in a statement via a press release. “They used violence to maintain their hold on their drug territory, in order to keep the cash rolling in.

The 27-year-old rapper was convicted alongside his co-defendants Jamaal Blanding, aka “Bionickhaz,” 38, of Philadelphia, Jameel Hickson, aka “Meliano,” 41, of Philadelphia, and Hans Gadson, aka “NoBrakes Bras,” 34.

“West and his co-defendants, members of the O.B.H. drug organization, pumped huge quantities of deadly drugs into our community while pretending to be legitimate artists and businessmen,” said U.S. Attorney McSwain. “Drug trafficking is an inherently dangerous business, and drug traffickers ultimately deliver violence and destruction to our communities without any regard for the people living there. Our Office is determined to do exactly what we did in this case: investigate and convict these dangerous criminals and put them in prison.”

“Furthermore, witness intimidation has no place in the criminal justice system and will be dealt with swiftly and harshly,” continued U.S. Attorney McSwain. “As alleged in a criminal complaint, an associate of O.B.H. attempted to intimidate a witness during the trial and is now behind bars, where he will remain pending trial.”