He died from cancer - he was only in his 50's. Unlikely to be dementia.
Correct, it was the cancer affecting his brain. Good comment on this at ~55:50 https://www.youtube.com/watch?v=vQp70uqsBV4&t=3470s
Correct, it was the cancer affecting his brain. Good comment on this at ~55:50 https://www.youtube.com/watch?v=vQp70uqsBV4&t=3470s