[sciectotacype17]

As a Buddhist i could not assist a person who want to die, for me that would be same as do a murder, i know it sound bad when i say it like this. but if a person is sick in my view it has to come from some kind of karma.

Well. That isn't entirely true. Think of those who live with alzheimers, and diseases that only progress into more and more pain, until even the drugs they are on cannot help. Those people simply see themselves as having lived their life to its fullest, and want to ease not only their own suffering, but that of their loved ones as well. And you don't have to assist persay, simply give them the option, the freedom of choice, to take that away could very well be torture to them.

And where would the Karma that good, honest, and caring people who have suffered these kinds of diseases, have come from? In my opinion, that could never be Karma in the sense I think your speaking of, but simply what it is, science, a disease brought on from the environment around us.