Note:
(a) The report cites
Prime suspect in Heywood death accompanied him to Chongqing
Leo Lewis, Prime Suspect in Heywood Death Accompanied Him to Chongqing. Times of London, Apr 20, 2012 (available now, if it were not behind pay wall)
(Zhang Xiaojun)
(b) On the same day (Apr 20) is another report:
Michael Savage, Pressure on Hague to Reveal If Murdered British Businessman Was Working as a Spy.
My comment: I can not find the underlying Times report. It can be (1)(b) above, or another. No title of the search result fits the bill; and a search of the newspaper's website with silence and Heywood returns several possible reports, with (1)(b) the most recent and others about a week old