Nick Gordon, 30, suffered a series of heart attacks after the alleged drug overdose and later died at Altamonte Springs Hospital, according to The Daily Mail.
His brother, Junior Walker, mourned his death in Facebook post, writing, “God why did I have to lose my brother on New Years.”
“All I can do is cry,” the post continued.
In January 2015, Bobbi Kristina Brown, 22, was found unconscious in the bathtub of her Georgia home after a suspected drug overdose. Gordon was in the home at the time.
Brown is the daughter of Whitney Houston, who drowned in a bathtub in January 2012. Houston was placed into a medically induced coma and died six months later.