The 22-year-old daughter of Courtney Kennedy and Paul Hill died on August 1 but Saoirse Kennedy Hill’s cause of death is still unknown. 

Saoirse Kennedy Hill’s cause of death has not yet been released, eight weeks after the tragic death of the 22-year-old daughter of Courtney Kennedy and Paul Hill. 

While examinations into other high-profile deaths often reach a speedy conclusion, Kennedy Hill’s cause of death is still awaiting the results of her toxicology report some two months after she was found unresponsive at her grandmother Ethel Kennedy’s home in Hyannis Port. 

According to the guidelines from the National Association of Medical Examiners, however, there is a 90-day deadline for 90 percent of autopsies and toxicology screenings, meaning it could be weeks more before the cause of death is officially released. 

A spokeswoman for the local prosecutor’s office told PEOPLE that “the case is still open to the extent that the Chief Medical Examiner’s Office has not made a final determination until the toxicology is available.

“We will send a press release with further information when appropriate to do so,” she added. 

Read more: Who is Saoirse Kennedy Hill’s father Paul Hill, member of The Guilford Four

Saoirse, a granddaughter of Robert F. Kennedy and Ethel Kennedy, was found shortly after 2.30 pm at the Kennedy family compound on Thursday, August 1.

Despite being taken to a local hospital the young student was pronounced dead. It is being reported that Saoirse, who wrote publically of her battle with depression, died of a suspected overdose. 

Saoirse (22) is the daughter of Paul Hill of the Guildford Four, a group of four Irish wrongly convicted of planting Irish Republican Army (IRA) bombs and her mother, Courtney Kennedy is very well known in Irish American circles.

They lived in Ireland between 2002 and 2006, and Saoirse was raised there for a time. 

Saoirse had publicly discussed her battle with depression, in 2016 penning an essay for her college newspaper about an attempt to take her own life and taking a year break due to her difficulties with her mental health.

Read more: Guildford Four Paul Hill jumps in sea in Saoirse Kennedy Hill’s honor