I'm very sorry to hear that Dave has passed. What a shame...
When I was watching the Amiga 30th videos I thought there might be something wrong with Dave because in one of the videos RJ makes a quick comment about Dave going through some tough times.
Did anybody else catch that? I don't remember which video it was but I know it was RJ talking about Dave and looking at him.
-P
PS: I don't know if anybody has posted this but here is a great article on Dave which give you a glimpse into how skilled he really was:
http://allincolorforaquarter.blogspot.com/2013/07/dave-needle-and-jerry-lawon-two-early.html