I am both shocked and saddened to learn of this, and extend my heartfelt condolences to both families.
Pal started me off on ArchiCAD 4.12 out of school in the 'brave new world' of BIM on the Mac in design, and Ed assisted me through many years, including beta testing and ruminating how best to assist development. Both such kind, honest and helpful people, and will be missed...
Since AC 4.12 on the mac, LEED AP, certified BIM Author...