(CNN) -- Her ankles bound, her mouth covered with duct tape, Christina Anderson was bashed at least 12 times in the head. Her 8-year-old son Ethan's body was burned beyond recognition. Those were some of the grisly details released this week by the San Diego Medical Examiner's office investigating the deaths connected to the Hannah Anderson kidnapping case, a case that captured the nation's interest last month. In August, Christina Anderson, 42, and Ethan were killed by family friend James Lee DiMaggio, who then set fire to his house and kidnapped 16-year-old Hannah, authorities said. This led to a multi-state manhunt that ended with the FBI shooting DiMaggio, 40, in the Idaho woods and Hannah's rescue.
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Hannah Anderson was kidnapped in August
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The teen's mother and brother were killed
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Hannah was rescued after James DiMaggio, a family friend, was shot by police
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Autopsy results for Hannah's mother and brother were released this week
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