Actress Brittany Murphy died early Sunday after going into cardiac arrest at her home in Los Angeles. Attempts by paramedics to revive her at the scene were unsuccessful, and she was pronounced dead on arrival at Cedars-Sinai Medical Center. Murphy was 32 years old. A child actress from the age of nine, Murphy's breakthrough role came in 1995's Clueless, and she later appeared in Just Married, Eight Mile and Little Black Book. She had been the voice of Luanne on the cartoon King of the Hill since 1997. She married screenwriter Simon Monjack in May 2007.