Euthanasia...for People

Jack Kevorkian is a man that I've never heard of before, but stumbled across and happened to find a very interesting story. Just a little background information: Kevorkian was an American pathologist who ultimately tried to convince the government that euthanasia on humans was a humane way to treat "suffering" patients. He treated terminally ill people, but also defined "suffering" as someone who wasn't sick, but desired assisted suicide. In 1999, Kevorkian was convicted of second degree murder in a case of voluntary euthanasia, and served eight years in prison. Kevorkian assisted in the deaths of 130 people between 1990 and 1998. The story is much more complicated, but this is a basic summary of what occurred.
Something that Kevorkian suggested to prisons (that is more along the lines of something I would agree with) is that the organs of inmates who were scheduled to receive the death penalty be donated to patients awaiting transplants. Prison officials, however, refused this suggestion. He also experimented with transfusing the blood of recently deceased people into healthy people, which was successful. He suggested to The Pentagon that this technique be used for wounded soldiers, but they refused his opinions as well.
This is a pretty sensitive topic I think, and I'm not quite sure if I agree with Kevorkian or not. Should euthanasia be a legal option for terminal patients? I think it could possibly, to an extent. In my opinion, Kevorkian took the idea too far by euthanizing people who were simply depressed or did not have an illness at all. However, this idea might be feasible for (example) people who are in the final stages of cancer or patients who are in a substantial amount of pain.
I believe that, as with any law, this type of thing would need to be strictly monitored and have many, many bullet points as to who, why and how this should be conducted specifically. However, like many regulations, I think it could easily be taken out of hand; the ruling manipulated to fit different cases, such as what happened with Kevorkian. It's a pretty fragile issue and may be ahead of our times.