Leolah Brown is interviewed on "Inside Edition"

Leolah Brown is interviewed on “Inside Edition”

*Leolah Brown, the older sister of Bobby Brown, is insisting that her late niece Bobbi Kristina AND Whitney Houston were murdered, and the truth will come out in due time.

In an interview with Inside Edition set to air Wednesday, Leolah spoke about losing her 22-year-old niece this summer.

“This was no accident,” she said. “I will never believe this was an accident… I believe that somebody killed my niece, just like they killed her mother.”

In January, Bobbi Kristina was found face-down in a bathtub in the Georgia home she shared with her boyfriend Nick Gordon. She died nearly six months later in hospice care.

Leolah believes Gordon is directly responsible for Bobbi Kristina’s death.

“Nick murdered Bobbi Kristina,” she said. “When Nick gets arrested, I think everything will fall like dominoes.”

Nick Gordon has neither been arrested nor charged in connection with Bobbi Kristina’s death, and has denied any wrongdoing.

Leolah continued: “I believe that several people wanted Bobbi Kristina dead… I think the purpose of her death was to gain full access to Whitney Houston’s estate.”

Whitney Houston died of an accidental drowning in a Beverly Hills hotel room in February 2012, when she was 48.

“I believe that Whitney was murdered,” Leolah added. “At some point we have to wake up and realize this is too close, too similar – mother, daughter, both in bathtubs… Something is very, very wrong with that picture.”

Leolah also spoke about her dramatic outburst during Bobbi Kristina’s funeral and the young woman’s last few days in the hospice.

Watch a teaser of her “Inside Edition” interview below: