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Source: https://writers.stackexchange.com/a/37782
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/

Source: https://writers.stackexchange.com/a/37782
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/

Generally, non-MC characters are killed to provide some sort of motivation or commitment to other characters, **or** to prove the lethality of the setting and raise the stakes of whatever the MC is doing to life-or-death. One more reason is self-sacrifice, somebody dying for their cause. This is often combined with a love motivation, a parent dies saving their child, a soldier dives on a grenade to save his brothers-in-arms.

Bruce Wayne's parents are killed to justify Bruce's emotions that drive him into a lifelong journey toward becoming a vigilante and preventing others from experiencing his plight. Spiderman has a similar back story.

In such movies, there is often an expression of love for the killed character by the MC in some way, even if it is back-handed love (an argument or disagreement with a sibling over something trivial) to add an element of _guilt_ to the MC about their friend/sibling/parent dying on a sour note in their relationship.

Alternatively, many a villain is motivated by _revenge_ for the death of a loved one.

In Star Wars, Indiana Jones, gang stories, spy stories, cop stories, disease stories, extras and walk-ons are slaughtered by the author with gleeful impunity to reinforce that the MC is in lethal danger. (Often by the MC themselves). The MC is often put in situations that cause them harm, even close to lethal harm, to prove the point. They get shot, stabbed, break an arm.

The "partner killed in the line of duty the day before retirement" has become a laughable cliché, but the first time it was used it probably delivered with good impact.

Another cliché is the walk-on, well-loved, long-lost college buddy that ends up dead by the end of the show, giving the MC motivation to disbelieve the "usual" explanations and dig deeper to prove the death was **no accident.**

In a show like "Erin Brockovich", the eponymous MC is motivated to extraordinary investigative lengths out of deep sympathy for the ill and families of the dead and dying, even though I don't think she was ever in any imminent danger herself. (It's been a long time, but I don't _think_ she was).

+1 Lauren, "When it serves the plot". These are ways and examples of how it serves the plot, and I will disagree and say the death **can** be purely to motivate another character, but if that is going to be the case, you probably need to "show, don't tell". Don't just say it in exposition, you need to show some depth of emotional connection to the doomed character by the character you wish to motivate. The motivation, for hero or villain, arises from the severing of some kind of love connection, be it parental (either direction), romantic or platonic (aka non-sexual, including siblings, friends, respected mentors, partners, etc).

Without the love connection, most character deaths in good fiction are examples of lethality, villainous or not. E.g. a fellow cancer patient has a seizure and dies unexpectedly, or in Gravity, a fellow astronaut is killed by high speed debris smashing through their helmet and destroying their head.

Or, the death is self-sacrifice: Obi Wan dies as his only option against Vader that allows him to continue protecting Luke (and it is necessary in the plot for Luke to be forced into autonomy.)

Original score: 5