Detectives investigating the murder of a Mansfield pensioner have followed up 8,000 leads but have yet to arrest anyone in the case.
Police say they are frustrated by the murder case
Gladys Godfrey, 87, was murdered at her house on the Ladybrook Estate in September 2002.
The MP for Mansfield, Alan Meale, has described the apparent lack of progress as disappointing.
Nottinghamshire Police say they have not stopped their inquiries.
"We have not let up since we found her body last September and we are extremely frustrated we have not caught the man yet," said Supt Kevin Flint of Nottinghamshire Police.
Police say they have a DNA profile of the killer, which they hope will help them track him down.
Mrs Godfrey's niece Sandra Pearson said: "I am still confident that they will catch him one day."
Winifred Brown, 83, who lives on the estate, said: "It is an awful feeling thinking about it."
Mrs Godfrey, who was sexually assaulted and beaten to death at her home, lived alone in her bungalow.
More than 2,000 free burglar alarms have been fitted by the council on the estate to reassure residents.
More than 1,000 personal alarms have also been fitted for pensioners who live in the area.