operating in appalling weather in a fully IFR equipped aircraft
All due condolences of course but I could not help noticing that the aircraft does not display any de-icing equipment on any of the photos available online (including GINFO). One can only hope that icing did not play a part in events.
I am sure the AAIB will do their usual excellent job of deducing a cause and I add my sympathies to those who knew the pilot.