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

Summary

As the investigation progressed, Guan Feng and his team uncovered crucial evidence about Li Lan's suspicious activities. They discovered she left her residence for work but was delayed by half an hour on the Ring Road. Surveillance footage indicated she lingered longer than expected, prompting the team to investigate a nearby repair shop. There, the owner recalled Li Lan coming in to duplicate a key around 5 PM, raising alarms about her intentions. The team retrieved the surveillance video, confirming Li Lan's involvement in the key duplication, making her the prime suspect. They planned to visit the hospital where she worked while also checking other potential locations to gather more evidence.

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