A pregnant woman’s pained screams could be heard in a Quincy courtroom Thursday as Judge Mark Coven watched a video that prosecutors say shows the woman being beaten by two Quincy teenagers outside a downtown post office. The Patriot Ledger reported that after watching the video, Coven ruled that the two defendants, Tyrese D. Johnson-Nurse, 19, and David D. Russell, 18, could pose a danger to the public and ordered that they adhere to additional conditions, including wearing a GPS monitor, if released. The two had been held behind bars since their arrest Tuesday on charges of aggravated assault and...