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

Summary

Captain Guan received a call from Captain Zhang, who praised his reputation in the Provincial Department. They discussed a case involving the kidnapping of Shang Nana, linked to a cash injection from unidentified armed personnel. Zhang agreed to assist by tracking surveillance footage. Afterward, Guan assigned tasks to his team and reassured Director Shang about their expertise. He then headed to Huaxia Bank to review surveillance with Zheng Yuan Dong, who confirmed the suspect Wu Qiang's location. In the bank's surveillance room, they found footage of Wu Qiang making a cash withdrawal, further complicating the investigation.

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