On Saturday a startling new report surfaced that Mr Heywood had told friends in China that he feared for his safety after falling out with Gu Kailai, Mr Bo’s wife. Concerned that somebody in the family’s inner circle had betrayed them, she was said to have asked Mr Heywood to divorce his wife and swear an oath of loyalty, which he refused, according to the Wall Street Journal, the newspaper which broke the original story about Heywood’s death last week.