Britain: The parents of a murdered teenager have told the Indian public that they will not rest until their daughter's killer is brought to justice
For the third time, the parents of Hannah Foster flew to Delhi on Saturday accompanied by Hampshire police.
They are attempting to speed up the extradition of the main murder suspect Maninder Pal Singh Kohli.
In a press conference on Monday, Trevor Foster said the extradition delay was "compounding their distress".
"When we saw Hannah's body lying in the mortuary, Hilary and I made a promise that we wouldn't rest until Hannah's killer was brought to justice," he said.
"Four years later that promise is still a long way from being honoured, but we are no less determined.
"Our lives are now totally preoccupied with achieving justice for Hannah."
Hannah, 17, was abducted, raped and murdered after a night out in Southampton in 2003.
Her body was found two days later.
Mr Kohli fled to India shortly after he was identified by British police as the prime suspect.
He was arrested in India in 2004 during a previous visit by Hannah's parents and has since appeared in court more than 100 times, but there are still no definite plans to extradite him.
Mr Foster added: "Two and a half years seems an eternity of waiting and not knowing."
We cannot rest until our Hannah has justice
Hannah's parents seek justice in India