In some cultures, a man like Winston Branko Churchill might fill a slot called "mendicant monk" or "wandering ascetic."
In ours, he died a lonely, self-inflicted death.
M. notes a similarity between his life and David Guterson's novel The Other, although it could well be that Churchill never read that book. (The suicide is the rejection of materialist society in favor of living alone, not the suicide itself.)
All in all, another case of suicide in beautiful settings.