Actor Philip Seymour Hoffman was found dead in his Manhattan home over the weekend. 

While authorities are still working on the official cause of his death, the 46-year-old was found with a syringe in his arm and five empty packets of what appeared to be heroin in the trash. Hoffman had been open about his struggle with drugs for years.

For more on the struggles many celebrities face with addiction and a look at the current state of heroin use in this country, we're joined by Dr. Howard Samuels of The Hills Treatment Center here in Southern California