My sincerest condolences, Jason. Losing a family member is always difficult, but to bear witness to their passing can have an even deeper effect. Was he keeping his illness a secret or was he completely unaware of his condition? If he never knew, that scares me and probably everyone else here. Makes one wonder what time bomb we may have ticking away inside, undetected.
I'll be thinking of you and your family. Take care, and feel free to take as much time off as you need to deal with this loss. Moments like these open your awareness to life's true importance...and it ain't gadgets.