Yes, he was dead. Are you saying every dead body is "evidence" of murder ...Jazzz said:er, he was dead, in obviously extraordinary circumstances, and didn't commit suicide.
It's well to follow Sherlock Holmes' maxim - you should know that one DB. "When you eliminate the impossible, what remains must be the truth"
And no-one has proved he "didn't commit suicide" - it's just the evidence is not 100% convincing.
It's well to follow D-B's maxim: "If you don't know what the fuck you are talking about, it's best to shut the fuck up"