Death is super popular in stories. Situations like dying elders, loss of loved ones, vanquishing a rival and the power of dealing death are fascinating as well as dreadful, and a major ingredient of Storyteller.
Implementing death seemed simple enough at first, "If a character is alive on frame 1 and there's a tomb on frame 2, he died!":
Now, Why not just implement a "kill character" button?
There's no such option because Storyteller always makes sure your stories make sense, and that freedom would allow players to create these situations: