It shouldn't be made. People should have the taste not to deliberately offend without good reason. I personally would not be interested in making such a game.
That said, there is no reason to litigate against it. Even the most bigoted Neo Nazi or racist is protected by free speech, as such, all material should be protected. Whether or not you choose to pay attention to it is your affair. Once you begin censoring material, it becomes difficult to decide whether the material is empirically evil and corrupting, or simply unpleasant. I can't think of any material that can demonstratably turn people into sociopaths or murderers, as such, I can't think of any material created in a legal fashion, and distributed legally, that deserves to be outlawed. If Jack Thompson was in charge of Censoring, we wouldn't have GTA, if I was in charge of censoring we wouldn't have religion (Or Jack Thompson). Everyone finds some material offensive, and even potentially corrupting, but once you think that "There should be a Law against this", there likely shouldn't be. Whilst it would be nice to live in a world where you weren't offended, I'd rather live in one where I'm free to offend and be offended.
Whilst making a media item about a school shooting, be it a book, movie, or video game, once taking it out of the context of a documentary retelling, and into a vicarious experience, one must be mindful that you're now not simply informing, you're doing so in the form of entertainment. That's bound to offend some people. Whether people being offended by your making it is entirely up to you, but I can think of many more offensive messages I'd rather spread than "School shooters are mentally unbalanced" or, "Killing sprees are bad".
BloatedGuppy said:
The slippery slope argument never holds any water. It's a logical fallacy for a reason. The only time you can actually argue you're on a slippery slope is when you're at the bottom of the slope buried under rubble, because otherwise it's just conjecture, and you can't made definitive statements based on conjecture.
Thank whatever God you pray too that someone knows their Logical Fallacies! Although I'd point out that this here:
BloatedGuppy said:
What about child pornography, starring actual children? Should it be illegal to make that? What if I made an op-ed "documentary" about how I believe you are a child murderer, in which I call you by name and show lingering shots of your home while ominous music plays and I speculate about the fate of missing kids in the area? Should I be allowed to make that, and screen that? Are you familiar with laws regarding libel and defamation?
Is actually an emotional plea, and not necessarily a rational one. The Laws against Child Pornography usually relate to the sexual exploitation of children, and statutory rape. To make or recieve such material is criminal and rightfully so. However, it's not based on the freedom of speech, and indeed, is held seperate to it, there is no clause stating that the First Amendment does not apply to such things. The reason to punish the creators of such material is because they are evil child abusing monsters, and the commision of such activities (Abusing Children) is criminal, or in recieving the material they collude in such a crime. Notice that once you get to drawings, such as some Japanese Anime and Manga, where the age of the participants is often unknown, but is indicated through the art to be less than what is legal, the law is not (As far as I am aware, although I would be interested to see if anyone has a case where it has been) applied, though some people have wanted it to be.
Every statement deserves protection under freedom of speech, be it racist, slanderous or simpy wrong. You can always punch a racist, or simply educate them, you can always sue a Slanderous or Libelious person, and force them to issue a retraction, and you can always logically discuss a topic with someone who is wrong, until they are right.