Bobby Brown jr. Was found dead in his Los Angeles home in November. He was 28.
The Los Angeles County coroner’s report, obtained by CNN, shows a “history of alcohol and drug use” and a shed on his right arm.
There was no evidence of internal injuries, and Brown’s death was reported as accidental.
His death was the latest tragedy to hit the Brown family.
Elder Brown, who has suffered from drug abuse in the past, mourns the death of his ex-wife, superstar singer and actress Whitney Houston, in 2012.
She married him from 1992 to 2007 and died just before the 2012 Grammy Awards after accidentally drowning in a bath, with heart disease and cocaine as contributing factors.
Houston was 48.
Three years later, the couple’s only child, daughter Bobbi Kristina Brown, did not respond in the bath at her home in Roswell, Georgia. She stayed, first in a hospital and then nearly six months in the hospital, before dying in July 2015.
According to the autopsy, the death of the 22-year-old was caused by drug poisoning and immersion, which led to pneumonia and brain damage.