D.C. police arrested a man who could lead them to the killer of a young attorney who was stabbed to death at a Northwest Washington town house last summer.

On Nov. 11, investigators arrested Phelps Collins, 36, who told them that the brother of homeowner Joseph Price let him into the house nearly three months after the Aug. 2 homicide, documents say, opening the possibility that the killing of Robert Wone, 32, was connected to a drug-related burglary.