I don't even know what to say to that, because since God is the perfect being, all knowing and all powerful creator I guess he should have thought of all that and not allowed a thought in the human brain or act of nature that could allow a death to happen.
I guess it never occurred to say "Let there be light, but no death" or what?
This is one of the nonsensical arguments that religious people use that leaves me speechless.
Obviously I can't "show you how death is Gods will" any more than you could show me God.
But since everything is Gods will, then death must also be.
Or is it just the things we like or agree with that are Gods will, and everything else is the will of the dude down under that religion likes to threaten with?