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

Summary

In the investigation of a murder, Chen Zi Ang reveals his acquaintance with Chen Jin while being questioned by Guan Feng. Chen Zi Ang's nervous demeanor raises suspicions, especially regarding his restroom visits and the food he ate. Guan Feng connects the murder to an exposed faucet in the restroom, implicating Huang Jun as the prime suspect due to his fingerprints. Chen Zi Ang's reaction suggests he may know more than he admits. Post-interview, Guan Feng and his colleague Wang Xun discuss Chen Zi Ang's behavior, indicating he might be a suspect or have inside knowledge. They decide to focus their investigation on him.

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