As everyone has said before stunned and gob smacked.

Never met the man in person but had contact and dealings with him when he was getting his microlight license sorting some maps out.

His threads always seemed to be funny and was always willing to help anyone out no matter what.

So it only seemed fitting that this post was in caps

r.i.p mad mark you will be sorely missed by all.

(well it was in caps when i typed it. the thought was there)