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FILE - In this Jan. 30, 2015, file photo, Fred Lorenzen is embraced by his daughter Amanda as son Chris looks on as he is inducted into the NASCAR Hall of Fame in Charlotte, N.C. He was one of NASCAR's first superstars, but  Lorenzen’s memories of his Hall of Fame career have dimmed as he battles dementia. Now, Lorenzen has pledged his brain to the Concussion Legacy Foundation. He joins Dale Earnhardt Jr. as the only NASCAR drivers to make the pledge. (AP Photo/Nell Redmond, File)
Associated Press | July 16, 2016 11:31 am
A NASCAR great battling dementia pledges brain donation