Police on Monday appealed to the public for help in finding two men sought for questioning in the death of a retired New York Times journalist. David E. Rosenbaum, 63, died Sunday night, two days after he was beaten on a street in one of the District of Columbia's better neighborhoods. Officers are trying to locate a black two-door sedan seen leaving the Friendship Heights neighborhood about the same time neighbors found Rosenbaum on the ground unconscious near his home. The men are not suspects but people the police want to interview, said Capt. C.V. Morris of the D.C. Metropolitan Police Department. Rosenbaum was found a short time after he'd gone for an after-dinner walk Friday night. Investigators believe he was struck on the head from behind and may have been unaware of his attackers because he was wearing headphones.