Highly qualified and able pilot operating in appalling weather in a fully IFR equipped aircraft. Normally there would be no need to stay "Vmc below" flying towards high ground and a 1000ft mast - in fog!!
There must be a lot more to this and, hopefully, the AAIB will be able to decipher what it is.
Sincere condolences.
Last edited by Arfur Dent; 17th Jan 2017 at 10:30.