I live about a mile from Tanglewood Park and Ms. Fleming's home. Two days after she'd disappeared, I went to the Clemmons library and saw a large "missing" poster on the notices board, and I stopped to read it. It was the first time I learned of her having gone missing; we just moved here to Clemmons from several states away and we are refurbishing our home and not watching the news much.
The poster clearly stated that she "may be suicidal". I don't know who created the poster or put it there, but it was large and "official" looking. I haven't been back to the library, so do not know if it is still there. I never heard this fact mentioned on the news, and I'm not sure why it was left out of news reports.
There are some aggressive forms of dementia that occur earlier than what we are accustomed to. My aunt passed away at 65 from a form of Alzheimers and I know someone who was diagnosed with Pick's Disease, another form of dementia that can cause brain deterioration and death at an early (relatively speaking) age. One could certainly become extremely depressed in the earlier stages of such a disease, knowing what lies ahead.
C