Bobbi Kristina Brown's aunt, Leolah Brown, promises to expose 'truth' about niece's death in upcoming book

Bobbi Kristina Brown’s aunt, Leolah Brown, has promised to explain the mysterious circumstances surrounding the untimely death of her niece in an upcoming book.

In a lengthy Facebook post on Jan. 27, Brown wrote that she vows to expose the truth about what happened to both Bobbi Kristina and her late mother, Whitney Houston.

“With all that has happened, I am sure everyone has questions and concerns regarding Whitney and Bobbi Kriss's death and murder,” Brown wrote. “AND I DON'T BLAME YOU. If it be the ‘WILL’ of The Almighty God, MY BOOK WILL ANSWER 'every' single question that has come up in your minds concerning what REALLY happened and took place with my sister and niece.”

She continued, “All of the why's and the why not's will also be answered as well. From the very beginning to the very end. I promise you will have it asap (if it is the will of God)! And after you read it, you will have to ask no more! Please be patient and look forward to ‘ALL THE TRUTH’ coming from Leolah's mouth.”

It’s no secret Bobby Brown’s sister has accused Bobbi Kristina’s boyfriend, Nick Gordon, of having something to do with her death. She also left the funeral in August after an outburst because of Pat Houston’s speech.