The actor died in his West Village apartment. He was 46.
Hoffman was found unconscious at around 11:15 a.m. Sunday on the bathroom floor of his apartment by friend and screenwriter David Bar Katz, who called 911. Hoffman was pronounced dead at the scene.
He was supposed to pick up his three children Sunday, but never showed....
A law enforcement official told ABC News that investigators found 50 bags of heroin along with used syringes in Hoffman's apartment along with drug paraphernalia and prescription drugs.