As far as Alzheimers, they are finding it in people younger and younger now. It's very scary. Scientist are trying to figure out what in our diet or environment that may be the cause. Sorry, I'm going off on a tangent I know, but someone who acted as this man did sounds like they may have something wrong with them and not just be an a-hole.

Read this paragraph from recent article:

"The number of younger Americans aged 30 to 64 with Alzheimer’s disease has tripled, a new analysis out of Blue Cross Blue Shield finds. Early onset Alzheimer’s diagnosis rates increased by 200 percent between 2013 and 2017".

https://www.beingpatient.com/early-onset-alzheimers-diagnoses-tripled/