A Japanese court on Friday convicted a U.S. sailor of killing a Japanese woman during a robbery near Tokyo and sentenced him to life in prison, a news report said. William Reese, 22, was convicted of robbing and fatally beating the 56-year-old woman near the U.S. Navy base in Yokosuka, southwest of Tokyo, on Jan. 3. The Yokohama District Court sentenced Reese to life in prison, Kyodo News agency reported.