Solve the Crime and Find the Murderer

On a rainy night, I ran looking for a building to take shelter from the rain. While running, an abandoned building suddenly appeared in front of me. Unexpectedly, I wanted to take shelter from the rain and witnessed a murder! The murderer suddenly turned around and saw me, with cold eyes without any emotion! In this city, countless crimes have emerged, but there is always only one truth! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.