Puzzling death circumstances in a family

[shootingstar]

The depression might have been an early symptom of Alzheimer's. Also, it is common for Alzheimer's sufferers to aspirate food or saliva, which can lead to pneumonia. Because Alzheimer's debilitates both the mind and body, the inability to fight off infection makes pneumonia one of the leading causes of death for Alzheimer's patients.

Perhaps this was all it was. I have lost touch with the wife, the ex-close friend of mine.

As follow-up to Tuckerville's thoughtful observation about suicide in general:
Now that I seem like a heartless, curious soul about my ex-close friend, do bear in mind a husband of first cousin that our family knows well, her husband committed suicide. The family did not hide the reason for his death.

And it has been tough on his surviving children who were young at that time.

That's all folks. There is nothing much more to say because I'm too distant to know anymore.