July 31, 2009. Hu Bin, the perpetrator of the Hangzhou street racing case, began serving his sentence, claiming he feels guilty. http://news.QQ.com 2009. At 10:45 AM today, Hu Bin, the perpetrator of the "May 7" traffic accident case, was escorted to a prison in Hangzhou. Regarding the scars that netizens have questioned the most, at the interview site, Hu Bin also showed his right arm, which had a long white scar. July 31, 2009. The prosecutor's office in Hangzhou...