A 24-year-old former library assistant at the fancy Riverdale Country School in the Bronx is suing the city and several police officers over a case of mistaken email identity that landed him in jail for 30 hours and left him publicly disgraced. The trouble started last year after William Hallowell sent a resignation email to Robin Bernsen, the head librarian at the school. She replied sympathetically, according to the Times, and Hallowell moved on with......