I think the guy he killed, had a name that started with… I think it was a d? David? Derek? Dddddouchebag. Douchebag, yeah. I think the person that died was a massive douchebag.

That seems right to me …

Luigi didn’t do it though. He’s being set up by the prosecution.

Source? It sounds like a conspiracy theory based on nothing

What indicates that would be the case?

There was no murderer. He died of natural causes