Let's establish here that this is reputation and possibly life-ending defamation. The man became suicidal after all. If I were to write a book with such a clai

Let's establish here that this is reputation and possibly life-ending defamation. The man became suicidal after all. If I were to write a book with such a claim about you, completely made up, and you'd report this to the book store. Then yes, I very much expect the book store to remove the book. Nobody needs to sue anybody, this only happened as Google could not make up its mind. Which means that even if you believe they have no responsibility, they're still in the wrong. You can't remove it 5 times and keep letting it resurface. Take a stance and stick with it.