I sat down with Emma Heming Willis who shared her deeply personal story about the new reality her family faces following Bruce Willis’ frontotemporal dementia diagnosis, and her evolving role as his care partner. A first look at my conversation with Emma airs Tuesday morning on Good Morning America. Our full show “Emma and Bruce Willis: The Unexpected Journey - A Diane Sawyer Special” airs Tuesday August 26 at 8:00 PM ET on ABC. | Diane Sawyer