system
Given the following post, respond as if you're commenting on Reddit:
human
[Injustice] What happened to lucifer morningstar in the injustice timeline?

I don't remember it coming up but I didn't play through every single character (I'm not good at fighting games) But it seems... important. Right? What happened to the actual devil that just lives as a cop in the dc universe, that many of the characters involved with superman are at least aware exists, and they are trying to wipe out all evil. Did they just quietly murder him without saying anything about it?
gpt
He, nor Heaven or Hell proper are even brought up in any of the comics or games. So it can maybe be assumed he's not actively engaged with this universe.

It is alternate universe. As much as it likes to pretend it's identical it's history is very different. So either he isn't around, doesn't care or had better things to do. Hell even John Constantine just got out of dodge.