A security guard successfully rescued a boy hijacked by a knife-wielding man on Monday in Xishui County, southwest China's Guizhou Province. It happened that a man with a hat kidnapped a 10-year-old boy on a road and a passerby talked to him for a while and left. Zhu Jiang, the passerby, in fact, did not leave the scene. He hid himself in a corner to buy time to save the boy.