The family of British teenager Nora Quoirin, whose body was found in Malaysia, said their "hearts were broken".
Nora, with special needs, was found just over a mile from the Dusun resort on Tuesday.
The 15-year-old Londoner was on vacation with his family when he disappeared from his room on 4 August.
In a statement, his family thanked 350 people for hunting Nora in a dense forest near the resort.
They added: "Nora brought people together, especially from France, Ireland, Britain and Malaysia, united in their love and support for her and her family.
" She truly touched the whole world.
"The cruelty of his departure is unchangeable. Our hearts are broken."
His cause of death has not been confirmed and Malaysian police say a post-mortem investigation is underway.
Police say the teen's parents have confirmed that the body discovered by a search team is their daughter's.
Malaysian deputy police chief Mazlan Mansor said Nora, of Irish descent, was found next to a stream in a "pretty hilly" plant area, and "not at all clothing".
Authorities have been treating her loss as the case of a missing person, but her family says they believe she may have been abducted.
Nora was born with holoprosencephaly, a disorder that affects the development of the brain, and her family says she is "independent and doesn't go anywhere alone".
On Monday, his parents Meabh and Sebastien, a French-Irish couple who lived in London for 20 years, put on a 50,000 Malaysian ringgit (£ 10,000) reward for help finding he.
Nora, her parents and her younger brother and sister arrived at the resort at a nature reserve near Seremban. about 39 miles south of Kuala Lumpur, on 3 August for a two-week stay.
Nora Quoirin disappearance: Timeline
August 3: Quoirins arrive at Dusun forest eco-resort
August 4: Nora disappears from her room
August 5: Lucie Blackman Trust says treat Malaysian police announce Nora's disappearance as a potential abduction, but officials deny any foul play is involved
August 6: Nora's family says they believe he was abducted  August 11: Malaysian police set up a hotline dedicated to receiving information about teenagers on
August 12: A £ 10,000 reward – provided by an anonymous Belfast business – is available for information leading on the safe return of Nora
August 13: A body was found in search of Nora