At least 120 people were killed Saturday and some 100 were injured in a stampede in central Seoul when thousands crowded into narrow streets to celebrate Halloween, officials said. Fire Department official Choi Seong-beom said the stampede took place around 10:22 pm (1322 GMT) and many of the victims were trampled to death. “The high number of casualties was the result of many being trampled during the Halloween event,” Choi said, adding that the death toll could climb. Officials had said earlier that 50 people were in cardiac arrest and that more than 140 ambulances were dispatched to the sce…