Warren Buffett, 96, passes the chairman's gavel to his son Howard

Warren Buffett is ending one of the key chapters in his life. The chairman of Berkshire Hathaway, one of the most successful investment firms in the world, is stepping down. He'll become chairman emeritus, with his son, Howard Buffett, taking his place. Najlah Feanny Bill Gates, Melinda French Gates, and Warren Buffett Buffett shared the news in a letter he sent to his board members. "Serving as your Chairman has been the privilege of a lifetime, and I have never taken your trust for granted," he wrote. "Father Time always wins. He has, however, been generous with me." Buffett . . .