49ers legend Dwight Clark, 61, dies of ALS
Clark battled amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease also known as Lou Gehrig's disease, since first experiencing symptoms in September 2015. Clark personally informed many friends and close associates of his diagnosis long before he made a public announcement of his condition on March 19, 2017.
Terrible way to go, had a good friend that died in his early 40’s from ALS and it was a terrible ordeal.