In October 2001, at the age of sixty-one, Campbell was diagnosed with [[Alzheimer's disease]].<ref name=letter>{{cite web|author=Carroll Campbell|url=https://infoweb.newsbank.com/apps/news/document-view?p=WORLDNEWS&docref=news/0EEFADD6230D8226|title=Letter from Carroll Campbell|date=October 5, 2001|publisher=''The State''|accessdate=April 2, 2020}}</ref> The revelation forced him to abandon plans to run for governor again in 2002. He was admitted to a long-term residential treatment facility for Alzheimer's patients in August 2005 and died four months later at Lexington Medical Center in West Columbia | In October 2001, at the age of sixty-one, Campbell was diagnosed with [[Alzheimer's disease]].<ref name=letter>{{cite web|author=Carroll Campbell|url=https://infoweb.newsbank.com/apps/news/document-view?p=WORLDNEWS&docref=news/0EEFADD6230D8226|title=Letter from Carroll Campbell|date=October 5, 2001|publisher=''The State''|accessdate=April 2, 2020}}</ref> The revelation forced him to abandon plans to run for governor again in 2002. He was admitted to a long-term residential treatment facility for Alzheimer's patients in August 2005 and died four months later at Lexington Medical Center in West Columbia |