Japanese authorities believed Sogen Kato, 111, to be Tokyo's oldest man. When they went to his family home to check on him, they saw his daughter and son-in-law (a couple in their 80s) and their two fiftyish children. Mr. Kato himself had no comment; what was left of him was lying on his bed, where he had apparently died some 30 years ago. "Grandpa," one of his grandchildren said, "was a very scary man."