Robert F Kennedy's 22-year-old granddaughter Saoirse Kennedy Hill died on Thursday in the family's Massachusetts compound due to a drug overdose.

She was the daughter of Paul Hill & Courtney Kennedy Hill and lived with her grandmother Ethel Kennedy. She was immediately rushed to the Cape Cod Hospital in Hyannis where she was declared dead.

Saoirse was a senior at Boston College. She was doing her majors in communication and was also the vice president of the College Democrats. The Sun reported that while Saoirse was in boarding school she struggled with a mental health issue. While she was in her junior year at Deerfield Academy she was allegedly sexually assaulted by her friend. She even tried to take her life. She wrote in her student paper that she underwent treatment for depression. She has said, "My sense of well-being was already compromised, and I totally lost it after someone I knew and loved broke serious sexual boundaries with me."

The Sun further reported that she wrote that her depression "took root in the beginning of my middle school years and will be with me for the rest of my life."

Recovering drug users, activists and social service providers hold a morning rally calling for 'bolder political action' in combating the overdose epidemic outside of the office of Governor Andrew Cuomo Spencer Platt/Getty Images

In a statement to The New York Times, the Kennedy Family said, "Our hearts are shattered by the loss of our beloved Saoirse, Her life was filled with hope, promise, and love." The 91-year-old Ethel Kennedy said, "The world is a little less beautiful today." She added that Saoirse had lit up their lives with her pearls of laughter and her generous spirit. She was passionately moved by human rights and the cause of women empowerment and found great joy in volunteer work.

New York Times has confirmed that an investigation is under way. The Kennedy family has been haunted by continuing tragedies. There was John F. Kennedy's assassination in 1963 on his visit to Dallas, Texas; and Robert F. Kennedy's assassination in 1968 in Los Angeles during his presidential run.