OKLAHOMA CITY (AP) — A boy stood up and repeatedly stabbed a 14-year-old girl during an assembly at an Oklahoma high school on the first day of classes Thursday and she was airlifted to a hospital, a local sheriff's spokesman said. Mark Opgrande, spokesman for the Oklahoma County sheriff, said the unidentified 14-year-old suspect is in custody. "They were having an all-school assembly ... when for some reason a male student allegedly stood up and started stabbing a female student.