Shoshana Kessock wonders why fans become so incensed when creators such as Avengers director Joss Whedon and Game of Thrones scribe George R.R. Martin kill off main characters:
I believe the discomfort comes down to the base fear of death and uncertainty that people face every day. Death is a subject that makes people uncomfortable. It doesn’t surprise me then that people would have such emotional reactions to fictional character death. They come to fiction to be taken away from the concerns of their everyday life. When confronted with the sudden death of a beloved character, viewers and readers are jarred into dealing with the uncertainty of life in their fiction and that can be unnerving. Look at reactions to the first murder in Psycho, or the death of Cedric Diggory in Harry Potter as examples outside of Martin and Whedon if you will, as they’re not the only writers who use the tactic to drive the emotional point home.