Oh doubly sad.
Guy (son) was the J DentO at Wigram when I went through IOT - he repaired five years of student neglect and I avoided death by OHP! We became quite good acquaintances, as I returned a year later to NATTS for AE training (hence the link to his Dad, who interviewed me for my re-Branching in Stout Street). I lost contact when I went the other way and transferred to the RAF; I later read - with shock - of Guy's death (with his sons) when I was in Saudi. IIRC there were a couple of unusual aspects surrounding the crash. The loss to his father would have been cataclysmic.
NZWP