Nick Gordon is being accused of causing the death of Bobbi Kristina Brown in a new lawsuit, which claims that he fed her a "toxic cocktail" before placing her face down in a tub of cold water.
The lawsuit, which was filed on Friday by Bobbi's court-appointed conservator Bedelia Hargrove, claims that Nick had accused the 22-year-old of cheating and a fight ensued.
The suit, obtained by NBC's 11 Alive, also claims there was another woman in the house at the time of the incident, as well as their friend Max Lomas.
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After the couple's fight escalated, moving from room to room, "everything abruptly became quiet," the suit states, after Nick allegedly fed her a "toxic cocktail" and placed her face down in the bath.
The suit then claims Nick changed his clothes, came out to the bedroom and laid his head on the leg of the "female guest" saying, "Now I want a pretty little white girl like you."
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Fifteen minutes later, Bobbi was found unresponsive in the bath and, after being pulled out, the suit states she had a swollen mouth and one of her teeth had been knocked out.
Bobbi suffered irreversible brain damage in the incident and never recovered, dying in hospice six months later.
Nick has previously claimed that the couple had done drugs in the morning and he found her unresponsive in the bath.