In August 2019, the naked body of Nora Anne Quoirin, 15, who suffered from learning disabilities, was found in a ravine near the holiday resort Dusun, where her family was staying in Seremban, about 70 kilometers (44 miles) away south of the Malaysian capital.
On Monday, the Seremban Court of Justice closed the investigation, saying there was insufficient evidence to indicate a crime.
The police had previously ruled this out, but her family questioned the findings and said she had never left them voluntarily.
Malaysia opened an investigation into the death in August, at the request of the family, with the lawsuit broadcast online due to coronavirus restrictions.
The court ruled on Monday that there was no one involved in Quoirin’s death and it was more likely that she had simply lost herself in the jungle.
“It was more likely than not that she died of an accident …” coroner Maimoonah Aid told the court.
“For me, speculating and assuming your actions and involving third parties without any evidence would be a violation of my duty, so the investigation is closed.”
A family lawyer did not immediately respond to a request for comment. Her parents, Sebastien and Meabh Quoirin, appeared solemn in the live broadcast of the court case as the decision was read.
Her mother Meabh, one of nearly 50 witnesses who testified in the investigation, said she believed her daughter could have been kidnapped and accused the authorities of not taking her concerns seriously.
Police, however, said there was no evidence that Quoirin was kidnapped and insisted that the investigation was complete.