Philip Seymour Hoffman autopsy ruled inconclusive

The exact cause of Oscar-winner Philip Seymour Hoffman's death is yet to be determined after the initial autopsy results were declared inconclusive.
The New York medical examiner said yesterday that the initial autopsy of the late actor, who died on Sunday of an apparent drug overdose, was inconclusive, reported E!Online.
The exact cause of the death would be known only after toxicology tests, which will take time.
A friend found the 'Capote' actor dead inside his Manhattan apartment on Sunday with a syringe in his arm.
Police investigating the death of the 46-year-old recovered more than 65 bags of heroin, along with syringes, a charred spoon and various prescription medications, including a blood pressure drug and a muscle relaxant.

The law-enforcement officials have arrested four people in connection with the death of the late actor.
The actor had an addiction problem very early in his life but had been sober for over 23 years. He got himself admitted to rehab last year following a relapse.