Sorry, I have to come back to continue because a thought just came to me.
On the matter of the preposition "on", is it possible "on" could be used to refer to, not somebody, but a discussion, opinion or a topic ect. like one would "agree":
I agree with John.
I agree with John on the matter.
Therefore,
Star lashes out at Walter.
Star lashes out on the speculation of her surgery revealed in Walter's new book.
Am I right..or wrong again?
Raen