Marine Pfc. Laurence A. Fleck, 23, was killed on Okinawa May 20 , his parents, Mr. and Mrs. Francis W. Fleck, 1094 Eleventh Avenue SE, have been notified. Fleck entered service in September, 1942, a year after graduation from Marshall High School. He was employed by the Martin Ware Co. prior to his enlistment. A brother, Kenneth, also is with the Marines on Okinawa.