Exclusive | Exclusive: How crash cover-up threatens career of Hu's top aide
How scandal over death of playboy son in a wrecked Ferrari is threatening to scupper career of president's ally ahead of congress
A speeding black Ferrari hit a wall on Beijing's North Fourth Ring Road in the early hours of March 18, then rebounded and crushed a railing on the other side of the road.
A half-naked man in his 20s died immediately and two young women - one naked, one semi-naked - were seriously injured.
Photos of the wreckage circulated online and many internet users took it as another drink-driving accident involving the "second-generation rich".
People speculated that the young man, reportedly surnamed Jia, was the illegitimate son of Chinese People's Political Consultative Conference chairman Jia Qinglin, who ranks fourth in the Politburo Standing Committee.
Wild stories began to spread that the trio were playing sex games in the car when the accident took place. Different versions of who was driving and who was in the front and back seats became the subject of gossip in Beijing's corridors of power.
But the accident, which happened just three days after Bo Xilai was sacked as party chief of Chongqing, has taken on a deeper significance.