Sargent Shriver, founder of the Peace Corps, is dead at age 95.  Unfortunately he had Altimeter's. 

Maria Shriver talked in 2009 to ABC News about the challenges of her father's disease.
"My kids dealt with the person that was sitting in front of them. Like, 'What are you doing, Grandpa?' And, 'What are you doing today?' And they didn't get into who my father was. They just got into who he was then. And I think that was a very valuable lesson to me," Shriver told "Good Morning America."
"Accept the person that's sitting in front of you. Stop trying to make them who they were. Let it go," she said.

Yes, absolutely. Very moving.