Robert F. Kennedy’s granddaughter, Saoirse Kennedy Hill, has died from a suspected overdose.

Hill passed away on Thursday at the Kennedy’s Massachusetts compound. She was 22-years-old and was the only daughter of Courtney Kennedy Hill and Paul Hill.

The family confirmed the news of her death hours after paramedics rushed to their Hyannis Port property.

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“Our hearts are shattered by the loss of our beloved Saoirse,” said the family. “Her life was filled with hope, promise, and love. She cared deeply about friends and family, especially her mother Courtney, her father Paul, her stepmother Stephanie, and her grandmother Ethel.”

Ethel Kennedy, the widow of late senator Robert F. Kennedy, also spoke of her granddaughters unexpected passing.

“The world is a little less beautiful today,” she said. “She lit up our lives with her love, her peals of laughter and her generous spirit. Saoirse was passionately moved by the causes of human rights and women’s empowerment and found great joy in volunteer work, working alongside indigenous communities to build schools in Mexico. We will love her and miss her forever.”

The home that Saorise was found in belonged to her grandmother Ethel.

The incident behind Saoirse’s death is currently under investigation by authorities.

Assistant District Attorney Tara Miltimore of the Cape & Island District Attorney’s Office confirmed that, “earlier this afternoon Barnstable Police responded to a residence on Marchant Ave in Hyannis Port for a reported unattended death. The matter remains under investigation by Barnstable Police and State Police detectives assigned to the District Attorney’s Office.”

Saoirse revealed in a 2016 essay for Deerfield Academy’s student newspaper, The Deerfield Scroll, that she suffered from depression and that her struggle with mental illness would be a life-long battle, despite saying that she had a “mostly happy” childhood.

“My depression took root in the beginning of my middle school years and will be with me for the rest of my life,” she wrote. “Although I was mostly a happy child, I suffered bouts of deep sadness that felt like a heavy boulder on my chest.”