Today, on his 78th birthday, Jack Kevorkian, the man known as "Dr. Death," is slowly dying in prison. And, according to his lawyer, Kevorkian seems to have second thoughts about helping people die. For years, Kevorkian was the center of a national debate around the highly controversial questions surrounding physician-assisted suicide or "mercy killing:" Do the terminally ill have the right to choose when and how they die? Do doctors have the ability, even an obligation, to help them die as they choose? Now, as he sits in jail, Kevorkian may have had a change of heart — not about...