BOSTON POLICE TO ANNOUNCE DEVELOPMENT IN THE SHOOTING DEATH AT 28 HILLIS ROADWHO: Police Commissioner Edward F. Davis, District Attorney Daniel F. Conley, members of the Boston Police Homicide Unit. WHAT: Commissioner Davis and District Attorney Conley will announce and discuss a development in the shooting death of Paola Castillo, 18, of Dorchester. The incident took place last Sunday, September 20, 2009. WHERE: Boston Police Headquarters – Media Room. WHEN: Saturday, September 26, 2009 at 11:30am.