[Font] had some great ideas on this subject for the scene itself. *nod* I have another thought to add, too.

For a really good death scene, I tend to think that the build-up before the scene is actually as important as the scene itself. He, or even better, some outsider who can see but not help him, might see it coming but be powerless to stop it. Have it coming, inch by little inch, until the actual scene occurs. ^^