There are major developments in the long-running case of Ellen Greenberg, the Philadelphia school teacher found dead inside her Manayunk apartment in 2011 from nearly two dozen stab wounds.

Medical examiners at first ruled Ellen Greenberg's death a homicide ... a homicide before being changed to suicide have sued the Philadelphia Medical Examiner’s Office and the pathologist ...

Nancy Grace investigates the suspicious suicide of Ellen Greenberg, a Philadelphia schoolteacher found dead in her apartment with 20 stab wounds; questions persist as to whether it was suicide or ...