FRONTLINE A Death in St. Augustine +ADD Aired: 11/26/201353:41Rating: NR On the night she broke up with her police officer boyfriend, Michelle O'Connell was found dead from a gunshot in the mouth. Next to her was her boyfriend’s semi-automatic service pistol. The sheriff's office ruled it suicide -- but was it? FRONTLINE and The New York Times investigate what can go wrong when the police are faced with domestic violence allegations within their own ranks.