Did Bobbi Kristina really take 'Heroin'?

Bobbi Kristina Brown's case has become the unsolved mystery as time and again new revelations come in, and of recent her former roommate said that Bobbi smoked Heroin and Crack before being found unconscious in bathtub in January.

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Danyela Bradley, a former friend and roommate of Bobby Brown and Whitney Houston's only child, said that the her late aspiring singer friend used to smoke marijuana, she probably smoked crack often and also did heroin, People Magazine reported.

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Bradley, who was in the Atlanta-area house when Brown was found unresponsive, added that when she was living with her later star kid friend, she used to oftenly take hard drugs, but she never saw her using heroin.

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Lastly she concluded that Bobbi had really good relations with boyfriend Nick Gordon, but he used to smoke Crack more than the late singer.