Follow up for my uncle

The autopsy report came back; the coroner said my uncle died of "sudden death, possible arrhythmia." This has left his widow and much of the family frustrated and slightly angry. I have doubt that a real cause (such as aneurism, which has been ruled out) would make his death much more sensible. For such God-trusting people as my uncle and his wife, can an otherwise inexplicable act of god be so unacceptable? It will be a strange turn to the story if further developments occur.

~A