Sumner Redstone, the businessman and media magnate who formerly served as executive chairman of CBS and Viacom, has died. He was 97. Redstone, who often boasted that would live forever, died Tuesday, according to a statement from National Amusements released Wednesday morning. Redstone was a media mogul who built his family’s drive-in theater chain into a global multibillion-dollar empire. In his 90s, he became the center of a jilted lover’s lawsuit that nearly cost his family his financial legacy.