OAKLAND -- A 48-year-old ex-convict has been charged with murder in the June 8, 2011 fatal stabbing of his then girlfriend's brother in West Oakland, police said Tuesday.

Besides one count of murder, Michael Freeman is also charged with assault with a deadly weapon in the death of Marty Harris, 59, who was found dead near Wood Street and West Grand Avenue. Freeman is also charged with two prior felony convictions: second degree robbery in 2002 and possession of a controlled substance in 1991.

Police said Freeman, of Oakland, whose street name is "Mike Mike," has denied involvement in the killing.

Police said the stabbing resulted from a dispute that Harris, also an Oakland resident, and Freeman were having over narcotics and Harris' suspicions that Freeman was mistreating his sister.

The dispute turned into a fistfight and ended with Freeman stabbing Harris, Officer Phong Tran said.

Harris' body was found about 6:30 a.m. that day. Police believe he had been dead for a few hours.

In the course of the investigation police learned of the men's relationship and what they fought over. Police also found physical evidence and witnesses that linked Freeman to the stabbing, Tran said.

Freeman was arrested Dec. 13 near his West Oakland home and charges were filed Monday.