Being on the periphery of your film-making group as I am, I feel privileged to know you all - but I especially felt a bond with Dave, through his excitement around DIT and storage. (I seem to have a thing for collecting hard drives). It was such fun for an old guy like me to suck up some of the energy Dave constantly exuded and I was tickled the day I was able to get his Teradek system talking to the iPads on the Clocked-In shoot for him.
Someone used the word "gutted" in reference to Dave's passing. I think it's an accurate term. It's unimaginable. Horrific. Mourning Dave is compounded for me as a parent of someone in your approximate age group. I feel for his parents (we are NOT supposed to bury our children) and I feel for all of you who should never have to experience the death of a friend - ever.
My thoughts and love goes out to you all. You post is amazing and spot on!
My age and life-experience tell me you will never forget Dave - and that he would want you all to continue being the fun, creative and exciting group of friends he loved so much being a part of.