Mr. Heywood was found dead in November in his hotel room in the Chinese city of Chongqing, where Mr. Bo was party chief until he was dismissed from that post in March.

WSJ: U.K. Raises Brit's Death in China Talks

Nor have officials said anything about the death in November in a Chongqing hotel room of a British businessman, Neil Heywood, who reportedly was sometimes a fixer for the Bo family.

ECONOMIST: Uncertain politics

She apparently poisoned him with cyanide last November in a hotel room in Chongqing, the region of which her husband was then party chief.

ECONOMIST: Chinese justice