这是一起没有现场、没有证据且发生在一年前的凶杀案。警方在网上接到被害人家属的寻人求助后,在没有掌握嫌疑人任何直接作案证据的情况下,成功运用心理战的谋略,仅用了24小时就破获了此案。微博求助,寻找失踪一年之久的女儿2013年2月中旬的一天,上海市公安局的官方微博“@警民直通车-上海”接到了远 This is a homicide without a scene, without evidence, and a year ago. After receiving the tracing help from the families of the victims on the Internet, the police cracked the case successfully in 24 hours without successfully grasping the suspect’s direct evidence of any crimes. Microblogging for help, looking for missing one year old daughter In mid-February 2013 day, Shanghai Public Security Bureau’s official microblogging “@ police through train - Shanghai ” received far