Death Spell.

Well, if you never intend to try it, then you don't need to KNOW it.

All you need to know is that it's possible, and it would cause some SERIOUS damage on both ends, but mostly on the end of the casting witch. We're talking some major bad ju-ju negative karma's a beyotch type stuff, here.

With that in mind, you can defend against such a spell easily enough.

I believe very possible, but I worry about backlash more.

I never intend to use many things I've learned throughout my life, like quadratic equations, but it doesn't mean I should remain ignorant to how it works.
It is quite easy to claim something like a death spell would work but then give absolutely no ways of how it work.

So are you wanting to know how to perform the spell it just how it works?

*or just how

No, I do not believe a spell will kill someone. Death is a natural thing unless someone physically harms another human being or animal.

Yes, a curse and all could potentially cause serious problems to someone but it won't kill them. That is my personal opinion being added on to my comment above.

try using a thought form programmed to take the intended victims lifeforce till it causes there death

my advice is do not try it because it might backfire on you if you want to do it be careful

I understand that you just want to know for knowledge's sake.

But the method is unimportant. Now that you know it's POSSIBLE, all you need to concentrate on is how to defend against it. And for that, you don't need to know method, just intent.