It is now being reported that actor Adam Rich, known for his role in ABC's Eight Is Enough, died from the "effects of fentanyl." 

The information comes from the Los Angeles County Medical Examiner's Office, which just released an autopsy report detailing its findings with regard to Rich's passing.

The report states that Rich's "place of death" was his "residence," that Rich's "manner" of death was an "accident," and that Rich's "cause A" of death was the "effects of fentanyl."

The report also states that Rich had non-toxic levels of alcohol and lorazepam/Ativan in his system.

Rich's death occurred back in early January, and, at the time, it was suspected that the 54-year-old died of a potential drug "overdose." The suspicion arose after the responding officers allegedly found a white powdery substance at the scene, which was in his Los Angeles home.

At the time, authorities also indicated that they did not believe that foul play was involved in Rich's passing. It was the manager of Rich's apartment building who found Rich's body after no one had heard from Rich for multiple days. When he finally was found, his body was already in a "state of mild decomposition.

It would appear that Medical Examiner's report now confirms both points: that Rich died as a result of drugs and that there was no foul play involved.

CBS News details the troubled life that Rich had.

Per the outlet:

Rich had multiple run-ins with police related to drug and alcohol use. He was arrested in April 1991 for trying to break into a pharmacy and again that October for allegedly stealing a drug-filled syringe at a hospital while receiving treatment for a dislocated shoulder. A DUI arrest came in 2002 after he struck a parked California Highway Patrol cruiser in a closed freeway lane.

More recently, Rich publicly discussed his problems both with substance abuse and depression.

In October, he said that he had been sober for seven years. But, it was less than three months later that Rich was found deceased at his home.

Following the news of his passing, Danny Deraney, Rich's publicist, revealed that Rich suffered from a type of depression that resisted treatment.

Rich, professionally, is most well-known for his role in the ABC dramatic-comedy Eight is Enough, which ran from 1977 to 1981.

On the show, Rich played Nicholas Bradford, the youngest son of the Bradford family. The New York Times writes that Rich's "helmet of shiny golden brown hair and innocent demeanor won him the affection of the audience."