LOS ANGELES (AP) — It's hard enough to redefine a genre once in a career, but horror virtuoso Wes Craven managed to do it twice. The prolific writer-director, who died Sunday at age 76, ushered in two distinct eras of suburban slashers, first in the 1980s with his iconic "Nightmare on Elm Street" and its indelible, razor-fingered villain Freddy Krueger.