Jack Walker, Nick Gordon's brother, now alleges Bobbi Kristina Brown was attempting to take her own life earlier this year when she was discovered unconscious and unresponsive in the bathtub of a home she shared with her live-in boyfriend.

"Extra" reports Walker further insists the only child born to Whitney Houston and Bobby Brown was simply "fed up with everything" and had basically given up on life.

In the hours leading up to Brown's comatose body being found, he added she and Gordon had quarreled after returning from a night of clubbing and that seemed to leave Bobbi Kristina even more distraught.

"They got in an argument and then it carried on to the house and they just went in separate parts of the room, and that's as far as I know what went on there," he said. "I mean, I knew how depressed Kris was, I knew drug use. I mean, all that mixed together with arguments is never, never good."

According to Gossip Cop, Walker alleges drug use by the couple was rampant and dates all the way back to before Houston died in a drug related incident more than three years ago. Try as he might to convince the couple to change their behavior, Walker alleges the pair continued doing whatever they were doing and he even once overheard "Whitney asking for the stuff."

Bobbi Kristina Brown hasn't spoken and there have been conflicting reports as to if she has ever regained consciousness after being rushed to a hospital emergency room in late January. Police have since began a criminal probe of the circumstances leading up to her hospitalization after discovering several unexplained bruises on her body.

Though TMZ reports the probe targets Gordon, Walker insists his brother never abused Bobbi Kristina. He later told "Extra," Gordon, who has since checked into a rehab facility, "would want people to know he cares for Krissi, he loves her just as much as he did before, and he's clean now. He's doing a lot better."