James DiMaggio's family wants paternity tests, believes he is father of Hannah and Ethan Anderson

The family of the man who kidnapped Hannah Anderson after killing her mother and brother are asking for a DNA test because they believe he is her father.

A spokesman for James DiMaggio's family made the request after it was revealed he left $112,000 to Hannah's grandmother, who he named as the sole beneficiary of his life insurance policy.

DiMaggio, who was like an uncle to the Anderson children and their father's best friend, died in a shootout with FBI agents on August 10 in the Idaho wildeess six days after he set fire to his home.

Hannah was rescued and retued to Southe Califoia. Her eight-year-old brother Ethan and mother Christina died from blunt force trauma.

Victims: Hannah posted both of these photos, dedicated to her late mother and brother, after she was taken back to Califoia. Police now say that Christina (left) and Ethan (right) were tortured and killed before the fire

Andrew Spanswick told 10News.com: 'He expected the grandmother to take care of the two children with the money. He stated he did not want it to go to their parents because they were having marital problems and he didn't trust them with the money on their own

'We are requesting DNA samples from Hannah and anything they can get from Ethan. There are rumors Jim was the children's real father.

'The parents didn't marry until 2002. We think it's strange he left them so much money with no explanation.'

He also described Hannah's behavior as suspicious saying: 'Some things that Hannah is saying on her Facebook doesn't add up so far; her latest posts are disturbing.'

It is unclear what these Facebook posts are. 

Stacy Hess, a spokesperson for Brett Anderson, said in a statement: 'Brett and Tina Anderson did not meet Mr DiMaggio until the sixth month of Tina’s pregnancy with Hannah.

'Brett Anderson’s DNA was used to identify the body of his dead son Ethan Anderson.'

When four horseback riders came across the 16-year-old in the Idaho wildeess with DiMaggio they said she did not seem to be under duress. She later claimed it was all an act as she did not want to endanger them.

They later tipped off police, leading to the rescue of the teen and the shooting death of DiMaggio.

Search warrants unsealed last week said Hannah was picked up from a cheerleading practice at 4pm on August 4, but Caldwell said the practice was a day earlier.

Firefighters found the body of Christina Anderson, 44, when they extinguished flames at DiMaggio's home in Boulevard, a tiny town about 65 miles east of San Diego on the U.S.-Mexico border.

A spokeswoman for the family said: 'Brett Anderson’s DNA was used to identify the body of his dead son Ethan Anderson'

What remained: Firefighters found the bodies of Christina and Ethan Anderson covered with tarp, showing that they were killed before the fire that but down Jim DiMaggio's Boulevard cabin (pictured)

A search warrant says she was found near a crowbar and what appeared to be blood next to her head.

The San Diego County Medical Examiner's Office said she died of a blunt head injury, without elaborating on the nature of the wound or the circumstances of her death in a posting to its website. The manner of death is listed as homicide.

Investigators found eight-year-old Ethan Anderson's body as they sifted through rubble. Authorities identified his remains several days later by extracting DNA from his bone marrow.

The medical examiner's office said on Tuesday the cause and manner of the boy's death remained under investigation.

Hannah Anderson says she didn't lea her mother and brother died until after she was rescued. She said on a social media site last week that she was 'on the road to Idaho' when the fire ignited.

'He had set to wear (sic) it would catch on fire at a certain time,' she wrote.

A memorial service is scheduled Saturday for the mother and son in Santee, an east San Diego suburb.