A teenage girl killed after apparently being lured by a man she met through the social networking website Facebook has been described as the "nicest kid in the universe" by staff at her school.
The body of Ashleigh Hall, 17, of Warwick Square, Darlington, was found on Monday night in a field in Sedgefield, County Durham.
Cleveland Police officers were led to the girl's body, which was near a Little Chef restaurant, by a 32-year-old man who had been arrested for a minor motoring offence. He continues to be quizzed by police.
They are investigating whether Ashleigh was groomed by a man she met on the internet and who possibly posed as a fellow teenager.
She had been a student at Hurworth School in Darlington, leaving last year after completing her GCSEs. Eamonn Farrar, chief executive at the school, described his astonishment and grief at the news of the teenager's death. He said: "I'm absolutely stunned. I heard it on the news and thought it couldn't be our Ashleigh.
"She was the nicest kid in the universe, you'd never meet a nicer kid. She'd always have a smile for you walking down the corridor, she was very polite and no trouble at all. They were such a lovely family, I can't believe anybody would want to do anything to hurt them."
Mr Farrar said Ashleigh had completed a wide range of GCSEs at the school and had many friends. But he said many teenagers were too trusting when forging internet relationships.
"This shouldn't happen to anybody," he said. "We need to have a look at it and to find out why it's happened, and to try to make sure that no-one else becomes a victim of this kind of incident. It's just too horrible for words."
Ashleigh left her home on Sunday night, telling her mother she was staying overnight with a friend, police said. Becoming increasingly concerned for her daughter's welfare, on Monday lunchtime Ashleigh's mother started ringing her mobile to find out where she was, but her calls were never answered.
It was after the arrest of the 32-year-old man, who has links to the Stockton and Liverpool areas, that the grim discovery was made.