Video evidence proves that Whitney Houston was murdered by "high-powered drug dealers", a private investigator claims.
Paul Huebl reportedly intends to inform the FBI of the details he uncovered while reading the coroner's report into the singer's death.
"I have evidence that points to Whitney being a victim of high-powered drug dealers who sent thugs to collect a huge debt she owed for drugs," Huebl is quoted as saying in the National Enquirer.
Huebl said two unknown men kept visiting the Beverly Hilton, where Houston was staying at the time of her death, and "blending in with her group of hangers on".
"The day before her death Whitney received a cocaine delivery but was later heard to say, 'I'm tired of this sh.t'," The Enquirer said.
"The PI says she was referring to being tired of [being] harassed to pay her drug debt, which had reached $1.5 million.
"On the day she died, Whitney was left alone in her hotel room for 45 minutes and that's when one or both of the killers slipped into her room and were captured on surveillance video.
"As for the coroner's report that says no foul play was involved in Whitney's death, the investigator, who has reviewed it thoroughly, strongly disagrees."
Huebl said Houston's body showed "classic defense wounds that would have occurred while she was battling for her life".