Relatives of Hannah Witheridge, who was killed alongside David Miller on a beach in Thailand, have arrived in Bangkok to meet police as DNA tests ruled out all their suspects.
The British backpacker's family hugged each other outside the headquarters of the Royal Thai Police, as they waited for an update on the investigation into her death.
Preliminary tests have indicated unidentified DNA found on Miss Witheridge's body, as well as on a cigarette butt at the crime scene, does not be matched any of the 13 suspects identified by police.
Hannah Witheridge's family hug each other as they prepare to meet policePolice said after the results that brothers Christopher and James Ware, childhood friends of Mr Miller, were now free to fly back to the Channels Islands.
The pair from Jersey had been questioned by police, but were never detained or declared to be suspects.
Eleven Burmese migrants on Koh Tao who were arrested after bloodstains were found on some of their clothes have been eliminated as suspects.
The results also indicated that semen discovered on Miss Witheridge's semi-naked body was not from Mr Miller.
David Miller died from drowning and a blow to the headOn Wednesday night, police had said there was forensic evidence to suggest that the 23-year-old from Great Yarmouth might have been raped.
Meanwhile, the Prime Minister of Thailand, General Prayuth Chan-ocha, has been forced to apologise after apparently suggesting female tourists might be putting themselves in danger by wearing bikinis.
Earlier this week, he was quoted as saying: "Can they be safe in bikinis ... unless they are not beautiful?"
But the military ruler later has now issued an apology.
General Prayuth Chan-ocha questioned if it was safe to wear a bikini"I am sorry that my statement caused uneasiness," he said. "I affirm that I did not look down on or criticise anyone. I simply wanted to warn them to be careful at certain places and certain times."
Miss Witheridge and Mr Miller were found in the early hours of Monday morning with head wounds. A bloodstained garden hoe - believed to be the murder weapon - was found nearby.
It has been revealed that Mr Miller died from drowning in conjunction with a blow to the head, while wounds on his hands indicate a struggle had taken place.
Police are looking for a man seen running past a CCTV camera near the beachBoth of their families have paid emotional tributes, with Miss Witheridge's relatives describing her as "a beautiful, intelligent, loving young woman who poured joy into the lives of all who knew her".
Mr Miller was described as "hardworking, bright and conscientious, with everything to look forward to".
Police have said they are keen to trace an Asian man captured on CCTV footage near the scene of the murders.
He was seen running past a security camera at 3.44am on Monday, and walked down the same street an hour later.