Bobbi Kristina Brown's friend details drug use

Bobbi Kristina Brown ''smoked crack often and did heroin'' in the weeks before her collapse, her former roommate has testified. The aspiring actress passed away in July, six months after she was found unresponsive in her bathtub and now court papers from a recently-taped deposition with Danyela Bradley - who was at her late friend's house when her lifeless body was discovered - have detailed her past drug use.