BEIJING (AP) – A man with a knife broke into a high school dormitory and killed as many as nine boys as they slept – the deadliest of a series of knife attacks at Chinese schools in recent months, the government said Friday. Students injured in knife attack at Indiana high school Dispute over manners leads to stabbings . . . an unidentified man used a knife to kill a 22-year-old pregnant woman and her 2-year-old daughter in building 4689 of the Breton Court Apartments.