Sonic Judgement Episode 2

Jiang Cheng discovers through voiceprint comparison that the kidnapper's voice is extremely similar to the deceased's, suspecting that the recording was a self-staged act by the deceased. However, the investigation shows that Li Xiu Ping had an alibi at the time of the crime, leaving many doubts. The police found hidden camera footage in his home, exposing the fact that Li Xiu Yan might have been under long-term control. His mother, Sun Xiu Ying, revealed the siblings' tragic childhood of being abandoned by their parents at an early age. The sister suffered cognitive impairment due to an accident, and Li Xiu Ping took on the responsibility of raising her alone, but his psychology gradually became distorted. The police visited Li Xiu Ping's colleague Zhang Wei Min and the defrauded client Deng Qing Lei, confirming that although both had motives, they both had alibis. Jiang Cheng further analyzed the editing traces of the recording, suspecting that Li Xiu Ping had long been manipulating and blackmailing others by maliciously editing their audio. Meanwhile, the investigation found that Li Xiu Ping manipulated investment fraud through a shell company and was even suspected of forcing his sister to shoot indecent videos. The mysterious figure Shen Yan appeared and shot Cheng Shan Hong to silence him. (Source: iQIYI)