Who was Hayden Panettiere? 'Heroes' and 'Nashville' actress dead at 36 - Check cause of death

Hayden Panettiere Cause of Death: Actress Hayden Panettiere, known for 'Heroes' and 'Nashville', has died at age 36. Her representative confirmed the tragic news to ABC News on Sunday. Panettiere gained fame as Claire Bennet and later played Juliette Barnes in 'Nashville'. She also appeared in the 'Scream' film franchise and released a memoir. The actress is survived by her daughter Kaya and experienced the loss of her brother.