This case illustrates the elusive nature of the concept of a mercy killing by a nonphysician. The perpetrator is almost always a family member, usually a man, who is intimately involved in the care of the victim, usually for a long period of time. There is no history of criminal activities or evidence of criminal intent to injure, abuse, or kill. Instead, there is substantial documentation of a loving & caring relationship as well as a history of intensive caregiving to meet the needs of the victim. However, the mutual involvement of the perpetrator & victim in the decision to die or be killed, as well as when, where, & how, is often unclear. (5 refs)