LOS ANGELES (AP) - Don Durant, who in the 1950s starred as gunslinger-turned-sheriff "Johnny Ringo" and also sang and wrote the television show's theme song, has died. He was 72. Durant, who had chronic lymphocytic leukemia since 1992, died March 15 at his south Orange County home, family members said. The half-hour series "Johnny Ringo" ran on CBS from 1959 to 1960 and its fast-drawing title character brandished a LeMat handgun that featured an extra barrel that fired a shotgun round. Though it only ran for a season, the Aaron Spelling-produced show generated about 100 toys and other items, including...