Well, if there's no will, the ex-wife has no claim. However Kirby's offspring do, and the ex-wife is their guardian.
The fiancee is out of the picture entirely, unless Kirby had provided for her in a will.
It's easy to call the ex-wife a money-grubber, but who else is supposed to protect the rights of Kirby's offspring?
I think I'll withhold judment on this one until more information is available.
What, you won't make snap judgments and condemn people based on a one paragraph blurb? What's wrong with you?