My condolences Mister Funt. At the risk of sounding patronizing, it seems to me that your reaction to this shite thing that happened is perfectly valid and it's good that you're confronting it. There's no right way to grieve.
Most definitely this.
For more than half of my life I've been of the feeling that grief is mostly self-pity in that I won't have this person in my life any more, which is a perfectly valid feeling. It must be balanced, though, with the feeling of joy that I was privileged enough to have had this person in my life at all. Of course, one can't very well start proselytizing this opinion to grieving relatives and so I tend to be just as awkward as most other people in such situations - stumbling through expressions of sympathy which, although heartfelt, seem little more than inadequate platitudes.