HIS name is Miguel, but friends call him "Don Juan" - after marrying 15 women in three years while divorcing none, prosecutors said today. A tenacious worker at the Nicaraguan office of civil registries uncovered Miguel Gutierrez, by searching for records of previous marriages when the businessman attempted to register marriage number 15. Prosecutors said Gutierrez, 38, married women to improve their chances of finding work outside Nicaragua. Gutierrez, a former immigration office worker, denies the charges. Prosecutors noted that the computerised civil registry only goes back three years, so Gutierrez may face additional violations. Investigators could locate only the...