Two words need some exploration here. First "murder" is a legal term--not every taking of a human life is murder. Secondly, morality is not a legal term; it is a human judgment of right or wrong action based on a set of principles that can be religion-based or personal-philosophy based. Loraaa's answer above has no validity as a logical argument. We also must look at what is meant by "justified," another term calling for human, not legal, judgment. While it may well be true that we all "agree" that cold-blooded killing for gain is morally unjustified, we cannot argue the point logically, only emotionally and personally. As for the case you cite, morality is beside the point--we all act for our own self-preservation; that cannot be disputed. Whether this was her only or best available solution, it is not our decision. We can speculate on how we would act, but it is only fiction for us--it was real for her. As for real-life cases like this, they abound, and juries make the decision as to whether it was "justified" homicide or murder.