Fans worldwide who want to bid Whitney Houston farewell will be able to watch her private funeral on the Internet. Her publicist, Kristen Foster, announced that The Associated Press will be allowed a camera at the Saturday ceremony in Newark, N.J. The AP will stream the service on http://livestream.com/aplive . “Sometimes people fall into a stupor when they're on a combination of drugs so they're difficult to arouse ”Clinical psychiatrist and addiction specialist Dr Karen Miotto The event also will be available to broadcasters via satellite. Houston was born in Newark. She died in Beverly Hills, California, on Saturday at the age of 48. Her body was flown back to her native New Jersey on Monda Death certificate The service will be at New Hope Baptist Church, where she sang as a child. Houston's death certificate shows she will be buried in the same cemetery where her father was laid to rest. The document was filed Wednesday with the Los Angeles County Department of Health in California. It does not list a cause of death. It lists the manner of death as "pending investigation," with the immediate cause of death listed as "deferred." Houston will be buried Saturday in Fair View Cemetery in Westfield, N.J. Her father, John Russell Houston Jr., was buried there in 2003. Investigation continues In Los Angeles, the investigation into Houston's death continues. It's become standard-operating procedure when a celebrity dies too young - investigators immediately go looking through their nightstand and medicine cabinet. Investigators said Wednesday they have subpoenaed records from the singer's doctors and pharmacies who dispensed medication found in her hotel room. The inquiries are routine in virtually all death investigations, Assistant Chief Coroner Ed Winter said, noting that similar measures are taken when a person dies in a car crash, shoots themselves or, as in Houston's case, dies unexpectedly. Toxicology It will be weeks before toxicology results reveal the medications and quantities, if any, that were in Houston's system when she died. The Grammy winner's history of substance abuse has added to the speculation that her death may have been caused by prescription drugs. Abuse of prescribed medications has skyrocketed in recent years. In 2008, more than 36,000 people died from drug overdoses - triple the number from 1990 - with most of these deaths caused by prescription drugs. Drug deaths, fueled by prescription drug overdoses, now surpass motor vehicle deaths, according to the Centers for Disease Control and Prevention. Investigators have not said what medications they have recovered from Houston's room at the Beverly Hilton Hotel. Singer found underwater The singer was found underwater in a bathtub by a member of her staff hours before she planned to attend a chic pre-Grammy gala. Police have said there were no signs of foul play and Winter said there were no signs of trauma on her body when an autopsy was conducted on Sunday. Among the scenarios that will likely be explored is whether Houston was drinking before her death, which could compound the effects of any medications she was taking. Stupor "Sometimes people fall into a stupor when they're on a combination of drugs so they're difficult to arouse," said clinical psychiatrist and addiction specialist Dr. Karen Miotto at the University of California, Los Angeles. Sober people who fall asleep in the bathtub will wake up when water hits their face. An impaired person may not respond the same way. Even a small amount of prescription drugs combined with alcohol "can result in a state of unconsciousness and inability to rescue oneself from drowning in the bathtub," said Bruce Goldberger, a forensic toxicologist at the University of Florida. Medical history In celebrity-rich California, the sudden death of a star always sparks interest in their medical history. When actress Brittany Murphy and actor Corey Haim died, their prescription medications became an early focus. In April 2010, Jerry Brown, then California Attorney General, proclaimed Haim was the poster-child of prescription drug abuse and doctor-shopping. The former child star of films such as "The Lost Boys" and "License to Drive" had long struggled with addiction, but coroner's officials ultimately determined prescription medications played no role in his death, which was attributed to pneumonia and an enlarged heart. A similar finding was made in the death of "Clueless" star Murphy, whose December 2009 death was attributed to pneumonia, along with severe anemia and prescription drug intoxication. A coroner's report stated that Murphy, who had been sick in the days before her December 2009 death, showed no signs she abused medication.