Ray J is blasting back at Bobby Brown’s sister, Leolah Brown, for claiming he provided Whitney Houston with cocaine and other drugs. In an appearance on the Dr. Drew show, Leolah Brown said she believed Ray J may have been Whitney Houston’s “runner boy” and gave the cocaine that helped to cause her death.

Bobby Brown’s sister, Leolah Brown, claims Ray J is responsible for providing Whitney Houston with the cocaine that helped kill her. The Los Angeles Coroner’s office announced Thursday that Whitney Houston died of an accidental drowning, but that cocaine use and heart disease contributed to her death.

The official Whitney Houston cause of death was drowning, the Los Angeles County Coroner announced on Thursday. Whitney Houston drowned, according to the coroner’s report, but heart disease and cocaine use contributed to the late singer’s death.

A judge has approved the validity of the Whitney Houston will, and the late superstar’s daughter, Bobbi Kristina, will be the primary inheriter of her mother’s fortune. Houston’s estate is valued at around $20 million in cash and assets.

The official Whitney Houston cause of death was not listed on her death certificate filed with Los Angeles County. So far, nothing conclusive has been ruled as the reason why the 48-year-old superstar died, although a combination of drugs and alcohol is suspected. An official cause of death will likely not be released until toxicology results from the Whitney Houston autopsy are completed in four to six weeks.

Although an official Whitney Houston cause of death has not yet been released by the Los Angeles Coroner’s office, sources close to the family reportedly say the singer probably died of a mix of drugs and alcohol. Whitney Houston was found dead on Saturday in the bathtub of the Beverly Hilton Hotel. Despite reports that the pop icon was found underwater, she allegedly did not die of drowning.

The Whitney Houston cause of death still remains unknown a day after the superstar’s death in a Beverly Hills hotel room. The Whitney Houston autopsy results have been completed, but the report has been put under a security hold due to the ongoing investigation into her death. Toxicology tests from the singer’s death could take from six to eight weeks.