I heard that a construction site in the northern suburbs would be vacated. Nearby residents took the opportunity to enter the site to collect "junk". The seven or eight security guards caught an old man and beat him to vent their anger. The old man's son fought with four or five security guards with a screwdriver to "rescue" his old father. Unfortunately, he accidentally stabbed the person in charge on the scene, Mr. Qu, who later died in hospital after failed rescue attempts. The son was put into jail, and his aged parents wept bitterly, saying that it was not worth causing a fatal incident over a little junk.