The younger Bolling had a history of drug abuse, and a "white powdery substance" was found at the scene, according to the report.More news: Pasadena police provide details on dispute between Houston Astros managers, hotel guests
The Fox News contributor was sacked over claims of harassing text messages just hours before his son's death.
The coroner ruled that Eric Chase Bolling, 19, died on September 8 from a combination of cocaine and fentanyl, and stated that his death was accidental, according to an autopsy report released on Thursday evening. The network also canceled Eric Bolling's show, "The Fox News Specialists".
There have been reports Eric Jr. had turned to drugs amid stress of his father's ignominy.
"I believe it is beyond inappropriate for anyone to bring in the tragic death of my son Eric Chase Bolling", Bolling said in a statement obtained by the Daily Camera.More news: Spain's Iberia airline passengers receive free Galaxy Note 8
In a tweet, O'Reilly apologized to Bolling, saying "the message I tried to send was that allegations harm kids".
Sources have said that the Bolling Jr. was "destroyed" by the scandal.More news: Asia billionaires overtake USA for first time led by China