A reward of up to £20,000 is being offered for information leading to the conviction of those responsible for the murder of Joanne Mathers in Derry 31 years ago this week.
Ms. Mathers, a 29 year old mother-of-one, was shot dead by the IRA as she collected census forms in the Gobnascale area on April 7th 1981. She was originally from Letterkenny.
Her husband Lowry has announced he is offering the reward through the independent charity Crimestoppers UK.
Her killer has never been traced, and Mr Mathers told the BBC he is determined to see those responsible brought to justice. He said the reward is accessible to any individual who passes on information anonymously that leads to the arrest and conviction of those responsible for Joanne's murder.
Mrs Mathers' son Shane, who was just two years old at the time of her murder, said while the family appreciates that nothing will bring his mother back, they want those responsible for her murder to be found and brought to justice.
The murder has already been reinvestigated by the Historic Enquiries Team, which met with the family last year after they expressed some concerns about the progress of the investigation.