I was not speaking to the cause of death. My reply was to the poster who claimed that dementia only develops slowly over time. That is not the case. It can come on suddenly (in minutes or hours) due to underlying medical conditions. See the link I posted.
Police found evidence linking John Parsons Wheeler 3d to devices planted at the New Castle home of a neighbor with whom he had been feuding, said the source, who is close to the investigation. The feud was over the size of the neighbor's house, which was under construction in the city's historic district.
http://www.philly.com/philly/news/20110105_Man_found_in_landfill_tied_to_arson_attempt.html
I plan on using it in any future legal defense in which I need to explain myself regarding any federal, state, or municipal complaint/s.
I love the sudden onset aspect as well as the recovery or relief of symptoms. Most predictable however would be the pharmacology of many cases, that being from drug use gone bad. That too would explain many of my postings right here on FR.