I put it in this forum because years ago he headlined the EFX show at the MGM Grand and I got to see him there. Former Partridge Family singer David Cassidy retired from performing because he admitted he is suffering from Dementia. He was playing a show in Agoura Hills, Ca. when he noticed that he was forgetting the words to decades old songs that he made popular. Said the disease affected his mother also. He is 66 years old. Very sad.