How will LV be destroyed?

[rt11guru]

No: HPFGUIDX 136225

This all has to end with the total destruction of LV.  It's not enough
to disarm LV and put him behind bars, he's too powerful for that and
has too many supporters.  It seems clear to me, that LV has to die. 

But how can Harry do it? How can our young hero vanquish his sworn enemy?

Can HP perform an AK, an unforgivable curse, and get away with it
because LV is evil, or is it still unforgivable in any case? 

Maybe he'll conjure up a tornado and drop a house on him? Wickedness
has been put down that way before, but then pure evil is several steps
above your garden variety wicked.

One possible outcome, is that the life comes full circle.  HP and LV
meet in Godric's Hollow. VL disarms HP and hits him with another AK.
The AK rebounds (you think he would have learned the first time),
killing LV. This time, he is clearly and sincerely dead.  That keeps
Harry from having to use evil to defeat evil. In fact, evil is
defeated by its own evilness (evility? evilosity?) offering up the
moral lesson of the day: "Live by the AK, die by the AK."

Guru