I too met Mark back in the late 80's, he struck me as being a very decent man. Whilst I had only met him comparatively few times, when I heard of his accident it was one of those events that makes your hair stand on end and a chill run down your spine.
I attended his Memorial Service at St Clement Danes, which was a very moving tribute and was packed to the rafters as well. At the end of the service I took a few pictures as the congregation departed, (I was taking pictures in London on that day anyway). Having sent the pictures via OFMC to the family I got a very nice letter of thanks, I wonder how many other pruners were there celebrating the life of this, in my opinion, very special aviator?