For anyone related to those who've died in this terrible tragedy: Beware. There are many, many people out there whose interests lie in attributing blame for this accident to the pilot alone. Sudden incapacitation or some other event solely attributable to the pilot is a neat way of turning something very, very complex into something very simple, so as to absolve everyone else from any liability.
I've seen this many times before: PPruNers with very few posts over years who magically turn up to run interference on any suggestion that the pilot may not have been the only, or even a, cause of an accident.
Naturally you, cncpc, will be happy to explain where you come from in Canada and what you fly. As it turns out, I have some cousins who live over there and a sister who happens to be visiting there for a few weeks. What's your location, so that I can organise a chat?