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Family wants San Diego mansion death case re-opened

Authorities in San Diego announced Friday that 32-year-old Rebecca Zahau, who was found dead inside a historic Coronado mansion in July, committed suicide.

September 19, 2011 12:00:00 AM PDT
The sister of a woman found naked, hanging from a balcony at a mansion in Coronado wants the police case re-opened.

Authorities have ruled Rebecca Zahau's death a suicide. They believe she felt responsible for the death of her boyfriend Jonah Shacknai's son who she was babysitting.

The boy died after tumbling down the stairs while in her care.

Zahau's sister spoke exclusively to Good Morning America's Elizabeth Vargas and she says it just doesn't add up.

Vargas: She was found not only nude but with her hands tied behind her back?

Mary Zahau: Correct

Vargas: And her feet tied. Why would someone do that?

Mary Zahau: I had the same question. It seemed like from the beginning a lot of things were ignored.

Vargas: So if you don't think your sister committed suicide, you're saying your sister was murdered?

Mary Zahau: Yes.

In a statement, Shacknai called Rebecca Zahau, "a wonderful and unique person who will always have a special place in my heart."