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

Summary

The passage details a police investigation led by Guan Feng focusing on Qian Hao, a driver. Through surveillance footage, Guan Feng identifies significant changes in Qian Hao's behavior over two weeks, noting a shift from cheerful to stressed and then suddenly becoming confident. The investigation suggests Qian Hao might be involved in a case, potentially acting alone. Reinforcements from other police units arrive to assist, with Zheng Yuan Dong leading further investigations into Qian Hao's background and circumstances.

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