Cause Of Death Revealed For Robert De Niro's Grandson: Reports

NEW YORK — Robert De Niro's grandson Leandro died after consuming a cocktail of drugs including fentanyl, according to reports.

The 19-year-old Leandro died from overdosing on fentanyl, bromazolam, alprazolam, 7-aminoclonazepam, ketamine, and cocaine, TMZ and Paige Six reported, citing New York City's chief medical examiner.

Sofia Haley Marks, 20, was arrested on federal narcotics charges after authorities said she sold Leandro the drugs that led to his death. Marks was arrested in July on three counts of narcotics distribution.

Rodriguez, the eldest child of Drena De Niro and artist Carlos Mare and an actor who appeared in the 2018 film "A Star Is Born," was found dead in his Manhattan apartment July 2. Drena De Niro announced his death on Instagram. In response to a question, she wrote that her son died after “someone sold him fentanyl laced pills.”

U.S. Attorney Damian Williams previously said in a statement that at least one of the fake oxycodone pills sold by Marks was "taken by a teenager who subsequently died of a suspected overdose," The Associated Press reported. He said the arrest “was critical because, as we allege, Marks knew the pills could kill, and she continued selling them anyway.”

The Associated Press contributed reporting.