We now know what killed Hannah Anderson's mom: The San Diego County Medical Examiner's Office says Christina Anderson died of blunt force. It does not elaborate in a brief posting on its website. A search warrant unsealed last week said firefighters found Christina Anderson's body near a crowbar and what appeared to be blood next to her head. The 44-year-old's body was found near the body of her 8-year-old son, Ethan, at the home of James Lee DiMaggio. In related news, DiMaggio apparently left $112,000 to Hannah's grandmother.