A SAILOR at a U.S. base in southern Japan was sent back to the United States Friday to await discharge from the Navy for indecent acts with a minor. The career enlisted man, whose name and hometown were not released, was found guilty last month of indecent acts with a Japanese girl . . . NORTH KOREAN gunboats violated South Korean waters Friday, and South Korean naval ships chased them out without a clash . . . JURORS in the Polly Klaas case in San Jose, Calif., retired for a three-day weekend after asking the judge questions about charges that could send the defendant to death row. Richard Allen Davis, 42, is charged with killing the 12-year-old girl after kidnapping her from her bedroom during a slumber party in 1993.
