At the scene of Song Jinfu's murder, because the traces of the crime were cleaned up, Lu Chuan did not find many clues when he first started to do the current investigation.

Fingerprints were removed, footprints were removed, tire tracks were removed, and nothing was left on the scene.

The only thing that caught something was that the killer left some sea sand on the mop used to dispose of the scene.

As the only clue found at the scene, Lu Chuan carried out the sea sand on the first day

"Attending the Wedding of an Ex-Girlfriend and Arresting the Groom on the Spot" Chapter 627 Clues from all parties are gathering in the middle of the fight, please wait a while,

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