After 30 minutes Goldberg returned but found he was locked out of the apartment, first attempting to use his key, then knocking loudly on the door, then trying to reach Greenberg by phone. Greenberg’s body also lacked defensive wounds, but many of her stab wounds were to her back and neck, so she may have been blitz attacked and unable to fight back. They theorized that one of the stab wounds in the back of Ellen’s neck could have caused her to lose feeling in her body, allowing her to continue stabbing herself. In 2019, Ellen Greenberg’s parents sued the original pathologist who conducted her autopsy and the Philadelphia Medical Examiner’s Office as an entity.