The reason cited by the mods is misinformation. Not supporting violence, or any other reason. Saying that Luigi isn’t the shooter is considered misinformation and trolling.
In America, the law is innocent until proven guilty. But on lemmy.world, the rule is guilty until proven innocent, and anyone saying the accused is innocent is a troll.
Even if he’s in court he’s still innocent, until (or even after) the court pronounces themselves. Courts don’t somehow magically generate a quantum state of truthfulness, they only declare legal terms.