Kenneth "Supreme" McGriff, center of a federal probe involving Murder Inc., is also being investigated for a drug-related double homicide outside of an apartment complex in Owings Mills, Maryland, newly filed court records state.

Court papers filed Wednesday in U.S. District Court in Baltimore stated that "a double homicide in front of [a] stash house in Owings Mills, Maryland, led to the discovery of McGriff's involvement in the current [firearm] offense."

According to the court papers, during an August 24, 2001 search of the Red Run Apartment complex, investigators found McGriff's fingerprints, $30,000 in cash, a stolen handgun and a gift certificate from a handgun training course issued to "Lee Tuten," which prosecutors alleged was one of McGriff's aliases.

The raids of the apartments were carried out three days after the double slaying that took the lives of Dwayne Thomas, 31, and Karon Russell Clarrett, 28.

No one was charged in the double homicide.

Investigators said they also found large amounts of powdered and crack cocaine and drug paraphernalia inside of the "stash house."

The court papers also allege that numerous items related to the "Crime Partners 2000" were found. Authorities allege that the companies formed by McGriff to produce the film were actually part of an elaborate money laundering scheme.

McGriff's attorney, Robert M. Simels recently denied the charges aimed at McGriff.

McGriff is scheduled to be sentenced Monday for firing a gun at a Glen Burnie shooting range, a violation of his probation. He faces 30 to 37 months in prison.