NEW YORK (AP) _ A former postal worker surrendered to police and confessed to shooting his roommate, whose nude body lay wrapped in plastic bags on a bedroom floor of their apartment for more than a week.

``His conscience was bothering him,'' said Lt. John Lane, commander of the 110th Precinct detective squad. ``It just got to him to the point where he came in and gave up.''

Thomas Gerard, 54, was to be arraigned on charges of second-degree murder in the death of Anthony Faricelli and criminal possession of a .22-caliber handgun.

Faricelli, a 66-year-old retired hairdresser, and Gerard had shared the apartment for about 12 years, said Stephen Endes, the landlord's son.

``They had their occasional squabbles, but they were very nice people,'' he said.

Police believe the pair had resumed a long-running dispute over Gerard's drug habit. In a rage, Gerard allegedly shot Faricelli twice in the chest.

On Sunday night, Gerard led detectives back to his apartment, where they found the murder weapon and Faricelli's body face-up on the floor.