As new details continue to emerge in the death of Oscar-winning actor Philip Seymour Hoffman, it appears the star knew his addiction would eventually kill him.

According to reports, Hoffman went on a huge heroin binge before Christmas and admitted to friends, “If I don’t stop now, I know I’m going to die.”

When law enforcement arrived at the scene, they discovered close to 70 bags of heroin in the actor’s apartment, 20 more bags than originally reported.

Hoffman supposedly relapsed after returning to AA in December in an effort to handle his addiction.

The actor’s recent drug problems is reportedly what broke up his and his partner Mimi O’Donnell’s relationship after 14 years.

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“It was known that he was struggling to stay sober,” says a Hollywood source. “Girlfriend Mimi O’Donnell had given him some tough love and told him he needed some time away from the kids and to get straight again.”

O’Donnell was supposedly at a playground near Hoffman’s Greenwich Village home with their three children when he was discovered.

She later told law enforcement that when she saw him Saturday afternoon and spoke to him later that evening, he sounded high. His friend and personal assistant were the ones to find him on the bathroom.

On Monday, actress Cate Blanchett and actor Justin Theroux (a close friend of Hoffman’s) were seen visiting O’Donnell’s apartment. Blanchett appeared to be carrying a box full of toys, perhaps for the couple’s 10, 7, and 5-year-old children.

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Cate Blanchett & Justin Theroux visit O’Donnell’s home Monday

Hoffman’s behavior around O’Donnell and his December relapse weren’t the only signs of trouble. The actor admitted to a random stranger at Sundance two weeks ago that he was a drug addict.

Magazine publisher John Arundel failed to recognize the “Capote” star at the film festival which led to Hoffman’s strange confession.

Once the actor removed his “sloppy hat,” Arundel exclaimed, “Oh, you’re Philip Seymour Hoffman” to which the 46-year-old responded “Bingo!” He then went on to admit to the businessman, “I just got out of rehab.”

Arundel says he “obviously wanted people to know he was in recovery mode.”

Besides heroin, a bunch of prescription drugs were found in the actor’s apartment, including the addiction-treatment drug buprenorphine. A charred spoon was also reportedly found in the sink.

As the investigation continues, police are currently conducting a massive citywide search to find the dealer or dealers who sold the heroin to Hoffman.

They may be the same men seen accompanying the actor to an ATM, where he made six different transactions, withdrawing a total of $1200.

The autopsy, which is expected to be conducted Tuesday, will determine what specific combination of drugs ended up killing the talented actor.