Entrepreneur, philanthropist, and co-founder of BET Sheila Johnson joins “CBS Mornings” to discuss her new book, “Walk Through Fire: A Memoir of Love, Loss, and Triumph.” She shares how she overcame self-doubt, fears of failiure, and what she describes as a painful, toxic marriage. Johnson now runs an award-winning luxury hospitality company and is the only Black female co-owner of three professional sports teams.