While I realize that caretakers really NEED that time away, it also bothers me that he was left alone. Even if she fixed his meals and he could put them in the microwave, you can STILL get burned by a microwave..(i have done it plenty of times.)
I really doubt that anyone came to check on him, they didn't allow anyone inside their home, did they?
He was a 20 year old adult male. Was somebody going to babysit him all his life? And I don't believe for a minute she was going to put him into any facility.
That story is complete hearsay with no evidence to support it.