Steven Schub, who shared a room with Philip Seymour Hoffman when they were both studying to become actors in New York has paid tribute to his friend and shared a picture from their student days:
My roommate, my friend, my hero. Philip Seymour Hoffman Room 729 Weinstein Hall. Rest in Peace. I love you. http://t.co/JDQuFinMf0
A variation 100 time more potent than heroin - laced with the painkiller Fentanyl - is causing a spike in deaths on the US East Coast.
Philip Seymour Hoffman joins a sad list of Hollywood stars whose lives were seemingly cut short by drugs, here is a look at other losses.
A look at the life and career of Philip Seymour Hoffman who has died from an "apparent drug overdose" aged 46.