A former roommate of Bobbi Kristina Brown is speculating that a "bad batch" of heroin more than likely led to the death of Whitney Houston and Bobby Brown's only daughter.

According to the International Business Times, Mason Whitaker claims a pair of Bobbi Kristina's friends got her hooked on drugs about a month before she was found face down in the bathtub of the Atlanta-area home she shared with boyfriend Nick Gordon.

Whitaker further asserts that on the late January night in question, Gordon was involved in a "cover-up to make the whole scenario look like an accident." Gordon is now facing a multimillion dollar wrongful death suit filed by the conservator of Bobbi Kristina's estate Bedelia Hargrove, alleging that he physically abused her and stole money from her during the time they were together.

Hargrove also claims that on the night Bobbi Kristina was rushed to a hospital emergency room, Gordon gave her a "toxic cocktail" and then put her in the bathtub.

Bobbi Kristina, 22, died on July 26 while under hospice care at an Atlanta-area facility and has since been buried alongside her mother at the Fairview Cemetery in New Jersey.

Whitaker points the finger at Danyela Bradley and Maxwell Lomas as the friends who allegedly got Bobbi Kristina hooked on drugs leading up to her death.

"And I'm not going to stop talking about Max or Danyela," Whitaker recently wrote on Facebook. "If you knew real facts about the case, you would know that Max and Danyela convinced Krissi to start shooting up... And Max and Danyela gave her bad heroine to shoot after Nick beat her up."

Whitaker's explosive claims hardly end there. He also posted that Bobbi Kristina's aunt, Pat Houston, conspired with both Bradley and Lomas to place all the blame for her death on Gordon.

"And if you knew anything about the real facts of this case, you'd know that Pat told Max and Danyela that she would pay them 'X' amount of money and be able to pay off the DA to have immunity if they made up a story that it was only Nick who killed her," Whitaker alleged.