I, King of Criminal Investigation, Solving the Rainy Night Serial Murders from the Beginning.

Summary

Guan Feng interrogates Wang Jun regarding a missing diamond necklace, emphasizing that all connected individuals are potential suspects until the true culprit is found. Wang Jun admits he didn’t check in and out during his time on set, explaining his reasoning and detailing the diamond's transport. They examine a briefcase where the diamond was stored, confirming its security and discussing the potential for sound-based lock-picking. Following the interrogation, Guan Feng instructs his team to gather surveillance footage and stresses the importance of discretion. They then attempt to interview celebrity Zhao Xiao Gu, but she is resting, leading to a temporary delay in their investigation.

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