This document discusses euthanasia and its legal status in various countries and US states. It defines euthanasia as intentionally ending a person's life to alleviate pain and suffering, and identifies three types: voluntary, non-voluntary, and involuntary. Several landmark court cases related to end-of-life decisions and removing life support are also summarized. Both arguments for and against euthanasia are presented, focusing on patient autonomy versus the ethical responsibilities of medical professionals.