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A woman was arrested in connection with the drug overdose death of Robert De Niro’s 19-year-old grandson Leandro De Niro Rodriguez. Leandro is pictured left with his mother, Drena De Niro, and Robert.

According to multiple news reports, drug dealer Sofia Haley Marks, 20, allegedly sold fentanyl-laced Percocet pain pills to Leandro who was found dead in a $1 million Wall Street apartment on July 2.
RELATED: Update: Robert De Niro breaks silence over grandson Leandro’s death
Marks was arrested around 6 p.m. Thursday during an undercover sting conducted by the NYPD in conjunction with the Drug Enforcement Administration (DEA) and Homeland Security.

Marks faces federal charges of narcotics distribution and will be arraigned in Manhattan federal court on Friday morning, per The NY Post.

Leandro’s mother, Drena De Niro, said, “Someone sold him fentanyl-laced pills that they knew were laced yet still sold them to him.”

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Drena (center) is the biological daughter of Robert De Niro’s first wife, actress Diahnne Abbott (left). Robert (right) adopted Drena while he and Diahnne were married from 1976 to 1988. They are pictured attending a party at Studio 54 in NYC in 1977.

“My beautiful sweet angel,” Drena wrote in an Instagram post, “I have loved you beyond words or description from the moment I felt you in my belly.”

“You have been my joy my heart and all that was ever pure and real in my life. I wish I was with you right now. I wish I was with you. I don’t know how to live without you but I’ll try to go on and spread the love and light that you so made me feel in getting to be your mama. You were so deeply loved and appreciated and I wish that love alone could have saved you I’m so sorry my baby, I’m so sorry @carlosmare. Rest in Peace and Eternal Paradise my darling boy.”