Slate has an article on this
http://www.slate.com/articles/news_and_politics/foreigners/2012/08/gu_kailai_trial_chinese_netizens_believe_that_bo_xilai_s_wife_has_hired_a_body_double_to_represent_her_in_court_and_possibly_serve_her_time_in_prison_.single.html "Double Trouble in China Gu Kailai was convicted of murder.