Breaking News:Judge To Unseal Search Warrants In Case
More people on Monday are questioning whether Rebecca Zahau really committed suicide at the Spreckels mansion in Coronado.
Among those who are raising questions are Rebecca Zahau's sister Mary Zahau and an author who is researching the case.
Rebecca Zahau's sister Mary Zahau told ABC's Elizabeth Vargas that she does not believe her sister took her own life.
Mary Zahau, like others, has questioned why someone would hang herself in the nude with her hands tied behind her back.
"It seemed like from the beginning, a lot of things were ignored," Vargas told Mary Zahau on Good Morning America. "So if you don't think your sister committed suicide, you're saying your sister was murdered."
"Yes," answered Mary Zahau.
She said she talked to Rebecca Zahau the night she died.
When asked if it was a normal conversation and if Rebecca Zahau sounded like herself, Mary Zahau answered, "Yes."
San Diego County Sheriff's investigators concluded Rebecca Zahau killed herself later that night after hearing that boyfriend Jonah Shacknai's son Max died from injuries suffered in a fall at the mansion. Rebecca Zahau was the only adult who was home at the time.
"It doesn't add up from day one," said Kathleen McKenna, who is writing a book on the case.
She told 10News she does not believe Rebecca Zahau committed suicide either.
"This case is so goofy," said McKenna. "There are so many things that don't add up."
McKenna said she had questions about blood, abrasions and more.
"How did the balcony doors get closed? How did the music get turned off? How did her clothes get down in the guest house?" asked McKenna.
San Diego County Sheriff Bill Gore emphasized that Rebecca Zahau's death was a suicide.
"Science is our best witness in this case," he said during a press conference earlier this month. "Science is not biased and it does not lie."
But Mary Zahau said she thinks experts should take another look at the investigation and recreate the scene.
A sheriff's spokesperson told 10News on Monday that if new evidence came to light, they would reopen the investigation. The spokesperson said there has been no new evidence to date.
Jonah Shacknai has also asked the California attorney general to look further into the case. Click here to read his letter to Kamala Harris
Copyright Do you have more information about this story? Click here to contact usCopyright 2012 by 10News.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.