Police say they've already received new information in their hunt for the killer of a pensioner in Wisbech.
86 year old Una Crown was stabbed to death in her home at Wisbech in January last year.
16 months on detectives have relaunched their investigation with new house to house inquiries.
They're also revisiting witnesses. A ten thousand pound reward has been offered.
Police say a decision to re-launch the investigation into the murder of a Wisbech pensioner is not a criticism of officers' work so far.
Sixteen months after 86-year-old Una Crown was found stabbed to death and set alight in her home at Magazine Lane, the case remains unsolved and no-one has been charged over the killing.
Today, Cambridgeshire Police announced they were re-launching the investigation in the hope of uncovering new witnesses and information.
But the force said that should not be taken as criticism of the work done by police over the past 16 months and that officers had "worked tirelessly" to try to find Mrs Crown's killer.
Stuart Leithes reports.