I don't see what is so mind-blowing here - The reporters were reporting that Adam's mother was a teacher and found dead at the school because that was one of the first misreports of the story that lingered on for too long. The Other adult found dead at the home was still NANCY - obviously - she wasn't at the school/wasn't a teacher.. The earliest word about a dead body in the Lanza home was that vague - there was A body. Nobody reported it was Nancy because that was either A. not available info and/or B. was conflicting with reports that she was found dead at the school.