Bobbi Kristina Brown had been drinking heavily, as well as regularly using heroin, cocaine, and Xanax, in the months before she was found unconscious in her bathtub, People reports.

Brown had reportedly also done multiple stints in rehab in the three years since her mother's death. The anniversary of her mother's death—February 11th—was approaching when Bobbi Kristina was found in her tub.

CNN reports that Bobbi Kristina will be "ventilated" through a hole in her throat after doctors removed her breathing tube on Wednesday.

[Photo credit: AP Images]