A 31-year-old electrician, accused of murder and kidnapping, was to be charged today with three additional drug-related murders, city police said.

Police said Ricardo Burks, of the 400 block of S. Augusta Ave. in Irvington, is to be charged with three counts of first-degree murder in connection with the weekend shooting deaths of Derrick Lamont Newman, 19, and his half-brother, Charles Jefferson Jr., 18, both of the 5800 block of Royal Oak Ave. in Woodlawn; and their cousin, Joseph Christopher Alston, 15, of the first block of Walden Oak Court, also in Woodlawn.

On Monday, Burks led police to a trash-filled lot in Odenton in Anne Arundel County where the teen-agers' bodies had been dumped.

City police have already charged Burks with murder in the fatal shooting of Marvin Odell Willis 3rd, 25, whose body was found Sunday at the victim's home in the 400 block of Yale Ave.

Police said Burks and Willis killed the teen-agers because they weren't satisfied with the quality of crack cocaine they had bought from the youths Friday night.

Then after dumping the bodies, Burks fatally shot Willis during an argument over who might first report the killings to authorities, police said.

Baltimore County police have charged Burks with kidnapping and robbery after he allegedly kidnapped a couple Sunday morning outside the Sinai Fitness Center in Owings Mill and held them for 18 hours before they were rescued by Howard County police.