George Harrison was beloved, and many ached for him, due to his good work in the world, asking to lift his pain. Many assume that he wanted to live. He did not. Cancer is a symptom of a desire to die, and he had a long bout with this. However, he declined, wanting out, and his wishes of course prevailed. John Lennon likewise was aware of the potential for assassination, and cared not. He was not viewed to be in a position of influence, requiring protection from the Council of Worlds, nor did he himself want this. Many who live as though casual about life, are in fact desiring a quick end, though they do not so state this.
Note: Nancy's Aug 31, 2002 IRC Stumble explained.