Investigation 4 Murder 4 Death 2 Ex-police officers 2 History 2 Private investigators 2 Abduction 1 more ... Americans 1 Aristocracy (Social class) 1 Assassins 1 Authors, Spanish 1 Brothers 1 Children 1 Criminal investigation 1 Drug traffic 1 Fundamentalists 1 Girls 1 Gold discoveries 1 Governesses 1 Immigrants 1 Jews 1 Journalists 1 Kidnapping 1 Lighthouse keepers 1 Lighthouses 1 Man-woman relationships 1 Missing children 1 Mothers 1 Organized crime 1 Police 1 less ...