UPDATE 1-Judge denies Redstone granddaughter's bid to join competency suit
April 20, 2016 at 18:43 PM EDT
LOS ANGELES, April 20 (Reuters) - A California judge on Wednesday rejected a bid by Sumner Redstone's granddaughter to join the media mogul's ex-girlfriend in a lawsuit that challenges the 92-year-old billionaire's mental competency.