Controversial Book Investigates Bobbi Kristina Brown's Life

In "Whitney and Bobbi Kristina: The Deadly Price of Fame," the author claims Whitney Houston's daughter had been leading an unstable life.
2:47 | 06/09/15

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Transcript for Controversial Book Investigates Bobbi Kristina Brown's Life
Shocking new allegations about the troubled life of Whitney Houston's daughter Bobbi Kristina inside an explosive new book called "Whitney & Bobbi Kristina: The deadly price of fame." And Mara schiavocampo is back with more on that. Good morning. Reporter: Amy, good morning. The book takes a look at the circumstances leading to Bobbi Kristina's tragic accident six months ago claiming her mother's death led her to drug use and to all the wrong people. This morning, controversial new allegations about Bobbi Kristina brown's life and troubles. It's terrible what had happened to this girl who was entering the prime of her life and had so much to offer. Reporter: In January the 22-year-old was found unresponsive in a bathtub nearly three years to the day after her mother's death. Now in his new book, "Whitney & Bobbi Kristina: The deadly price of fame," best-selling investigative author Ian Halperin claims Bobbi Kristina had been leading an unstable life leading up to the accident. There were allegations of drugs and alcohol. She never dealt properly with the loss of her mother. Reporter: Halperin says though Bobbi Kristina's childhood was turbulent she and her mother Whitney Houston were extremely close. ? Reporter: And that whit it's death sent Bobbi Kristina into a downward spiral. He says leading her to surround herself with enablers who were just using her for her access to Whitney's money including friends like nick Gordon, Gordon was at the home when Bobbi Kristina was found. 21-year-old female in the bathtub face down, pds en route. Reporter: Later behaving erratically and breaking down on an interview on "The Dr. Phil show." My main is horrible. My heart hurts. I have panic attacks. Deep breath. Come here. Sit down. Nick. Reporter: In one of the book's most explosive claims Halperin says he is not convinced what happened in January was an accident at all. And says he believes there's evidence suggesting foul play. There's no doubt the circumstances are highly suspicious because she was found in a bathtub of cold water. There is a criminal investigation going on as we speak. Reporter: Now he says despite conflicting reports Bobbi Kristina's prognosis is not good and that her father, bobby brown is the main one holding out hope. He's been at her bedside almost 24/7 since the accident happened and he's believing a medical miracle is possible. The Ross well, Georgia, police confirm the criminal investigation is still ongoing adding no decision has been made to prosecute anybody. We reached out to nick Gordon and bobby brown for comment but did not hear back. Such a sad story, Mara, thank you very much.

This transcript has been automatically generated and may not be 100% accurate.

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