1995 Nanshan Mine Case: 10 guards loaded with live ammunition but were murdered by 4 people, how was the murderer caught? After a lot of previous crimes, a mouth was fed to the big boar mine to pay wages, the gangsters came to keep an eye on the guards with live ammunition, but within two minutes they all fell in a pool of blood and the three gangsters escaped successfully, but left a badly burned corpse at the scene, who is he? How do the police crack the case? End with the spear of the other against the shield of the other:

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