Glen Campbell's Widow Opens Up About the Emotional Final Days of His Alzheimer's Battle: 'There's a Sense of Relief' this link is to an external site … Inside Country Legend Glen Campbell's Battle With Alzheimer's Oct. 7, 2014 03:12 Despite the progression of the disease, Campbell brightens when he … At the family's request, BrightFocus has established the Glen Campbell Memorial Fund for Alzheimer's research and education. Glen Campbell’s song “I’m Not Gonna Miss You” is up for Best Original Song at the Oscars. When Glen and his family made the bold decision to go public with his Alzheimer’s diagnosis, it was a watershed moment. Lisa Lake/Getty Images Almost five years after his initial diagnosis, Glen Campbell is now in the final stages of Alzheimer’s. Glen Campbell was diagnosed with Alzheimer's Disease in 2011.