The Mayor of Holyhead, John Charlton, and local councillor Cliff Everett are appealing for local people with information to come forward and help solve the murder in 1994 of Mrs Doreen Morris.
Mr Everett says he remembers the incident well because he was one of the first fire fighters who arrived at the scene on Mill Lane, and found Mrs Morrisâ€™s remains during the early hours of Friday, 25th March.
He said: â€œI am echoing the police appeal and Iâ€™m urging anybody to contact the police to bring the killer or killers to justice.
â€œWhen the anniversary of the murder comes round every year, I ask myself, how much did this lady suffer?
â€œThis has left a dark cloud over the close-knit community of Holyhead and I am appealing to those who hold vital information that could assist the police to come forward.â€
Thursday last week marked the 16th anniversary of the death of 64-year-old Mrs Morris, whose badly burnt remains were discovered at her home, Penrhyn Uchaf, on Mill Lane.
Fourteen months after Mrs Morrisâ€™s death officers charged a man, who lived locally, with her murder, but he was later cleared by a jury at Chester Crown Court.
Mrs Morris was a healthy and popular woman who lived alone with her two dogs in a rural area on the outskirts of Holyhead and was last seen alive on Thursday, March 24th 1994.
Her badly burnt remains were found by the fire service, who attended the fire in the early hours of Friday, March 25 1994. The fire caused extensive damage to the property. A post mortem examination revealed that Mrs Morris had died before the fire started.
Mr Chorlton said this week : â€œFollowing the tragic death of Leon Jones last November the people of Holyhead pulled together and assisted with the police investigation and subsequent anti-knife march.
"As the Mayor of Holyhead I was extremely proud of the community however Iâ€™m asking people to support the police once again with the investigation into Mrs Morrisâ€™ tragic death.
â€œThis was a horrendous crime and if you have information please contact officers so the police can bring this investigation to a successful conclusion.â€
Over the past two weeks, over 11,500 leaflets have been delivered by Royal Mail, in and around the Holyhead area, appealing for anybody with information regarding the murder of Mrs Morris, whose badly burnt remains were discovered at her home in Holyhead 16 years ago.
North Wales Police believe there are people in the community who have the information that is needed to successfully resolve this investigation, and have so far, had a positive response to the investigation.
District Inspector Nigel Harrison said: â€œWe strongly believe that the answer to this investigation lies within the community of Holyhead, and I urge individuals that if they hold vital information which would help us, then please come forward and speak to us either directly at Holyhead Police Station, or do so anonymously via Crimestoppers Wales.
â€œIf you are in fear of speaking be assured that we can provide assistance and support. Please come forward and make that contact.â€
North Wales Police are continuing to offer a reward of Â£100,000 to anyone with information which will lead to the arrest, charge and conviction of Mrs Morrisâ€™ killer(s).
Posters have also been distributed by the local Neighbourhood Policing Team in local shops and cafes.
Anybody with information, however significant, is urged to contact the Major Incident Team in St Asaph, or local officers at Holyhead Police Station on 101, if you are calling from Wales, 0845 607 1001 (Welsh line), 0845 607 1002 (English line) or Crimestoppers Wales anonymously on 0800 555 111.
Alternatively send a text message to 66767 or email Â£â€œ email@example.com