The family of Nóra Quoirin have said they hope to get more answers about what happened the teenager in the days before she died.
Nóra's body was found on Tuesday in a forested area near the Malaysian holiday resort she had travelled to with her family.
She had been missing for ten days and an autopsy revealed she died as a result of prolonged hunger and stress around six days after she disappeared.
In a statement this morning, her family said questions remained over what happened to her.
"The initial postmortem results have given some information that help us to understand Nóra’s cause of death," they said.
"But our beautiful innocent girl died in extremely complex circumstances and we are hoping that soon we will have more answers to our many questions.
"We are still struggling to understand the events of the last 10 days."
Nóra disappeared from the Dusun Holiday Resort, around 60km from Kuala Lumpur, on the morning of Sunday August 4th.
Her father raised the alarm after finding her bed empty and a downstairs window open.
Hundreds of people were involved in the search over ten days.
Malaysian police said there is currently no evidence of foul play in relation to Nóra's disappearance.
They said there is no sign that she was kidnapped and the autopsy found no evidence that she had been sexually abused.
However, a lawyer for the family said they can't rule out criminal involvement with so many questions remaining unanswered.
Jim Gamble, a Belfast-based former police officer and child protection expert, has been in contact with the family.
"We don't know how she left the villa," he said.
"We don't know how she got from the villa to the location where she was finally found and we need to understand why, over a period of six or seven days while she was alive with intensely well-resourced searching going on in the area, she wasn't seen or located."
The family thanked Malaysian authorities, local people and volunteers that took part in the search.
The Lucie Blackman Trust, which has been handling media relations on behalf of the family, said investigations into the death are continuing in France and Malaysia.
They have called for an end to "public speculation" on what happened for as long as the investigations are continuing.
The charity confirmed that a reward of over €10,000 that was offered for information on Nóra's whereabouts was not claimed.
The family said: "We will be bringing Nóra home where she will finally be laid to rest, close to her loving families in France and Ireland.”
Nóra's mother Meabh is from Belfast, while her father Sebastien is French. The couple have lived in London for the past 20 years.