Hm, the question of one's death is a frightening concept, mainly because we don't really know what will happen after we die. It's definitely comforting to believe in life after death, and there are a lot of anecdotes about how there's really life after death. But there's also the possibility that we will cease to exist, and it's rather difficult to wrap one's mind around that when we exist here and now. Death has always been a concern of religion and philosophy. Other disciplines deal with the concept of death as well, but it appears to be foremost in religion and philosophy.
Horror movies do have general themes when it comes to victims dying, don't they? What is especially striking about those scenes is how the death usually comes very unexpectedly.