Yeah a little morbid, but that name was all I felt like thinking of. If you were to be killed by any animal, what would it be? Would you pick something unsuspicious, like a penguin? Or just the standard lions, tigers and bears*. Also, in this weird scenario, there is no chance of survival. You're not gonna make it. Certain death. All that fun stuff.
Killed by death itself! If it exist, i would love yo see her face to face, and let her take me.
But if we talk something really realistic, i would say Killed by The end of the world. I would love someone to make a life formula, so i can live to the end of the world.