After the Zombie Apocalypse: Estate Tax Implications

While members of our do-nothing Congress bicker, we are faced with a real problem:  What are the estate tax implications of the zombie apocalypse?

I mean, are they dead, or undead?  Do lost body parts count as "partially included assets," or something else?  And how do you figure the unified credit if I blow up my zombie uncle's head, and then get the gold teeth?  Are those heritable, or are they gifts?  The IRS has no answers.  And you can't very well ask your accountant, if he looks like this:

But Professor Chodorow has answers.

With thanks to the LMM, who doens't really like zombies very much.