One issue that comes up from time to time is the issue of doctor assisted suicide. This is where doctor helps a usually terminally ill patient cause their own death. One of its chief proponents was Jack Kevorkian. He assisted as many as 130 people to cause their own death via a suicide machine that he built.
Kevorkian spent the last years of his life in jail as his effort to legalize the practice failed. He did spark a large amount of debate on the subject with some saying he was a savior and others saying he was in spiritual danger. He died from a blood clot naturally at the age of 83.