Board Thread:Questions and Answers/@comment-31190419-20170130180218/@comment-31190419-20170131211955

1. Visible body - yes, but not a visibly dead body. And then in Chapter 92 the same area was shown again with Mutsuki looking over to where Tatara should've been, and only mentioning seeing Takizawa and Amon. As mentioned in Chapter 60 by Haise, Tatara was the top individual target of the Rushima invasion.

http://img.mangastream.com/cdn/manga/117/3666/032.png

This matches up with the Chapter 89 scene here:

http://img.mangastream.com/cdn/manga/117/3621/132.png

It is possible that Mutsuki is covering up Tatara's dead body with some sort of angle magic, but either way, the decision not to show him there introduces doubt as to his status.

2. Dramatic final moment/flashback or internal monologue - This has happened to multiple characters without them dying, and Tatara wasn't on the dramatic end of the spectrum either. I don't think this should count as evidence unless they mention in their monologue that they are going to die.

3. Stated to be dead by other characters - Simply untrue. Takizawa said that he would dream of the day where he would kill Tatara and take the credit for it, but not that he actually killed Tatara. There is a strong precedent of powerful knock out blows that leave the ghoul victim of the attack unconcious but not dead.