One of three hostages killed in a 13 1/2-hour jewelry-store siege was deliberately shot to death by a sheriff's marksman, a 13-year veteran who thought he had the gunman in his sights, Sheriff Sherman Block said.

"It was not an accidental shot," Block said of the round that killed Van Cleef & Arpels store manager Hugh Skinner, one of the hostages being used by gunman Steven Livaditis as a shield in an escape attempt Monday night.

"There was adequate illumination in the parking lot for him to get a clear sighting, and he hit the person he aimed at at the spot he aimed," Block said. Addenda Fire of suspicious origin swept an inner-city boarding house for the disabled in Detroit about 2 a.m., forcing residents to jump from windows, and three persons were killed and 20 injured, two critically, authorities said.The state of Washington banned sales of over-the-counter capsules for 90 days as federal authorities searched thousands of bottles and packages for more of the cyanide that has contaminated Excedrin Extra-Strength and Anacin-3 capsules and killed two persons.Romanian seaman Virgil Anastasiu jumped ship in Brooklyn, and told police that he wanted to stay in the United States. A source said he was granted political asylum.A grand jury in Cleveland refused to indict a black man in the shootings of eight whites during a neighborhood racial dispute earlier this month.Reputed mobsters Anthony and Michael Spilotro, found beaten to death Sunday, will be denied a public church funeral because of their links to organized crime, the Roman Catholic Archdiocese of Chicago said.