Robert De Niro’s daughter Drena is mourning the loss of her son Leandro De Niro-Rodriguez.
The 52-year-old actress, who is the adopted daughter of the film legend, penned an emotional Instagram tribute to her son alongside graveside photos on Monday.
Leandro died tragically from an accidental drug overdose on July 2.
“One can feel that if everyone valued the depth of love and sorrow, we would not have wars, such harm to children or animals, to our planet and oceans,” the memorial read.
Drena De Niro/ Instagram
“I grieve for myself, for my loved ones, and for everyone who has lost a child or loved one,” he continued. “I will never get used to this, no one should get used to it 😢 I pray that the whole world will heal and this heart that beats inside me will find peace.”
Drena also posted a photo of a rock with a winged heart painted on it and placed it next to her son’s grave.
The actress captioned her Instagram story, “Mi manchi motto molto, il mio amore, mio cuore, Leo” in Italian, which translates to “I miss you so much my love, my heart Leo.”
Drena De Niro/ Instagram
On the other side of the rock he wrote: “Leo, we love you. The world misses you.”
She wrote “I love you sweet child” on the photo of the flowers left on his grave. “Sleep well and may you always be filled with love and light.”
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Drena De Niro/ Instagram
Leandro was found dead in New York on July 2, at the age of 19. The chief medical examiner ruled that his death was caused by an accidental drug overdose. Drena previously claimed on Instagram that her son was sold “pills laced with fentanyl.”
Sophia H. Marks, 20, was later arrested in connection with the teen’s death.
“I am deeply saddened by the passing of my beloved grandson Leo,” the 80-year-old Hollywood actor told PEOPLE in a statement at the time.
“We greatly appreciate everyone’s condolences. We ask that we please be given privacy to grieve the loss of Leo.”
Meanwhile, Drena shared: “It is with immeasurable shock and sadness that we say goodbye to our beloved son Leo. We thank you for your love and support and ask that we be given privacy at this time to process this inconsolable pain.”
On August 11, Drena remembered her son’s 20th birthday with a touching social media message.
“You would have been 20 today 💔 Thank you my little angel for the happiest and deepest 20 years of my life,” she wrote. “I hope you are at peace today and always and your soul is filled with joy.”