Mercy killing is defined as the killing of one person by another. The victim of mercy killing is normally in the vegetable state or has an injury or illness that cannot be cured, as it is usually in its last stage. The victim experiences immensely painful last days just before his or her death. For a voluntary case of mercy killing to take place, the killer must first obtain the consent of the victim, but there have been recorded cases of mercy killing against the wishes of the victim as well.
This is known as involuntary mercy killing. Mercy killing is known as euthanasia. The victim of a mercy killing dies a painless death after suffering an incurable ailment or serious injury. The term euthanasia, which means mercy killing, is derived from the Greek word for 'good death'. Euthanasia has been legalised in some Western countries but is still considered to be an unethical practice in the Third World.
OT: My girlfriend is doing this class for homework. She has to write a debate about it. I would like some strong selling point's and maybe some against point's for it as well. I'll even add a poll.