the fact that he brought a gun with the intent to kill people
Literally not a fact. Even as just a hypothesis that that was his motive, every single bit of evidence (all the facts we have about what he did in Kenosha that day) contradicts the notion that he wanted to/intended to/planned to kill anyone. He literally did everything he could to avoid using his weapon, short of literally forfeiting his life to homicidal maniacs.