Leolah Brown, the sister of R&B singer Bobby Brown, claimed Bobbi Kristina Brown’s boyfriend, Nick Gordon, murdered her in an exclusive interview with "Inside Edition" Wednesday. She added that someone killed Bobbi Kristina Brown’s mother, pop legend Whitney Houston, but Leolah Brown said she didn’t know who was responsible for the Grammy-winning singer’s death.

“This was no accident,” she told "Inside Edition" about Bobbi Kristina Brown’s death in July at the age of 22. “I will never believe this was an accident ... I believe that somebody killed my niece, just like they killed her mother. I don't know who actually murdered Whitney."

Gordon, 25, has denied vehemently any wrongdoing since his girlfriend was found facedown and unconscious in a bathtub in her Roswell, Georgia, home Jan. 31. Last week, his lawyers filed a motion to dismiss the $10 million wrongful death lawsuit filed against him by Bobbi Kristina Brown’s estate in June. His attorneys called the claims “slanderous” and “without merit.”

Still, Leolah Brown maintains Gordon is guilty of foul play even though authorities have not charged him with a crime and he has never been arrested. They only said he was a “person of interest.”

But Gordon isn’t the only person Leolah Brown holds responsible. “I believe that several people wanted Bobbi Kristina dead,” she said. “I think the purpose of her death was to gain full access to Whitney Houston's estate.”

Leolah Brown drew comparisons to the death of Bobbi Kristina Brown and Houston. Like her daughter’s tragic death, Houston was found in a bathtub at a Beverly Hills hotel room in February 2012. She was 48 years old. 

“Something is very, very wrong with that picture,” Leolah Brown said. “At some point we have to wake up and realize this is too close, too similar -- mother, daughter, both in bathtubs.”

The interview with "Inside Edition" is not the only place Leolah Brown sounded off. She also took to Facebook. “For every evil deed there are consequence and repercussions,” she wrote Sunday. The post was liked hundreds of times by her thousands of followers.

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