As Bobbi Kristina Brown remains comatose and her family debates long-term care options, the question of how she wound up in this state remains unanswered.
Obviously, all of the prevailing theories involve drug use, but now it looks as though Bobbi Kristina's "experimentation" may have actually been a long term addiction from which she had been suffering for several years.
Jack Walker is the brother of Nick Gordon, the man who was dating and living with Bobbi Kristina at the time of her alleged overdose.
Family members have suggested that Bobbi turned to drugs as a coping mechanism following the death of Whitney Houston.
Now, a young man who was close to the situation says that was definitely not the case.
Walker says that Bobbi and Nick's drug use had been going on for several years before Houston's passing. In fact, Walker claims that Houston may have played an instrumental part in getting Bobbi hooked in the first place.
"This isn't something that just came about when Whitney died and they started doing it...I would be on the phone with Nick and I would hear Whitney asking for the stuff...Same stuff they were doing."
Asked if Whitney was "allowing drug use in the house," Walker replied, "Definitely." He answered in the affirmative again when asked if Houston used drugs along with Bobbi and Nick.
Questioned about the night when Bobbi Kristina was found unconscious in her bathtub, Walker opens about some startling revelations that Nick made about the incident:
"I guess they went to a club the night before," Walker said. "That;s where it all stemmed, they goat in an argument from there and then it carried on to the house and they just went in separate parts of the room...Drug use, all of that mixed together with arguments, it's never good."
Despite the volatile nature of the relationship, however, Walker claims he can say with certainty that their altercations never became violent.
Asked if he believes Bobbi Kristina's overdose was a suicide attempt, Walker responded simply, "I do."