Police 20 Murder 16 Investigation 14 Serial murder investigation 14 Criminals 13 Death (Personification) 12 Good and evil 12 more ... Students 12 Death 10 Superheroes 8 Crime 6 Private investigators 5 Graphic novels 4 Vigilantes 4 Women superheroes 4 Blacksad, John (Fictitious character) 3 City and town life 3 Criminal investigation 3 Nineteen fifties 3 Organized crime 3 Social life and customs 3 Werewolves 3 Bandes dessinées policières 2 Cartoons and comics 2 Coaches (Athletics) 2 Conduct of life 2 Crimes against 2 Detective and mystery comic books, strips, etc 2 Detectives 2 Food law and legislation 2 less ...