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

Summary

Guan Feng investigates Chu Xiao Hong's villa, discovering suspicious evidence. He finds two toothbrushes with moisture traces, suggesting two people stayed overnight. Hair samples in the shower drain reveal different hair lengths, indicating another person besides Li Ge was present. He subtly questions Chu Xiao Hong about smoking, sensing her nervousness. Collecting hair and toothbrush bristle samples, Guan Feng plans to have the technical department analyze them to uncover potential connections to the ongoing investigation.

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