An American citizen called Jasmine Sun was the main suspect of China's Thallium posion murder case in 1995,but Chinese police cannot investigate this case because of her identity.We hope the American government will pay attention to her and can repatriate her. Actually the same petition have existed on this website,but we want to emphasize this vital murder case!
http://en.wikipedia.org/wiki/Zhu_Ling_(poisoning_victim)