The long tendrils of the mystery surrounding the death of Neil Heywood have reached all the way to the White House.
Details emerged yesterday of the diplomatic frenzy that ensued when Wang Lijun sought protection from a US consulate in Chengdu at the beginning of February.
The appearance at the consulate's gates of Wang bearing documents believed to have contained incriminating information about Bo Xilai, caught US diplomats by surprise.
During a frantic 36 hours, the New York Times reported, US officials in China, at the State Department in Washington and at the White House tried to decide what to do with him.
During all this time, the consulate was surrounded by throngs of security guards apparently deployed by Bo to take Wang into custody.