400 teens were involved in a violent flash mob at the philadelphia mills mall. the crowd converged on that mall again overrunning security guards that tried to stop them at the door. two officers were punched in the head as they tried to break up fights and it took two hours to get the juveniles out of mall and get the situation under control. four teens are arrested. and sara bloomquist will have more at 4:30 as they try to keep this from happening for a third night in a row. we have an update for a story we told but as breaking news yesterday. philadelphia police have a woman in custody following a shooting and car crash in the mt. airy section of philadelphia and we learned that homicide charges are now pending against her. 33-year-old terrell bruce was shot in the head while driving along walnut lane and then crashed into another car and pronounced dead at the scene, witnesses saw a woman run from the crash. >> new details on a large