Alec Baldwin is mourning the loss of his mother, Carol. The "30 Rock" actor announced the passing of the Baldwin family matriarch on Thursday. She was 92. "My mother taught me about second acts. And third ones, too. She spent the last 25 years of her life as a fighter and a champion for the cause to which she devoted so much energy. We are all enormously proud of her accomplishments." Alec said. Hailey Bieber also grieved the loss of her grandmother. "We love you Grandma," she wrote.