A fresh team of detectives have been brought in as police in Cambridgeshire today re-launch the investigation into the murder of Wisbech pensioner Una Crown.
It is now 16 months since the 86-year-old was found dead in her West Norfolk home in Magazine Lane.
She had been repeatedly stabbed and then set on fire in what police believe was an attempt to disguise her injuries and destroy evidence.
Now a fresh team of detectives from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit is re-launching the investigation in the hope it will lead to a breakthrough in the case.
Officers will spend the week in Wisbech carrying out house-to-house enquiries, revisiting witnesses, putting up posters and handing out leaflets appealing for information.
A mobile police station will also be set up in Magazine Lane.
Police say that while the murder investigation was never closed, a decision has now been taken to review the case in the hope of moving it on and identifying further witnesses.
– Det Ch Insp Sharn Basra, Cambridgeshire Police.
"We firmly believe there are people in Wisbech who know who is responsible for Mrs Crown's death.
"Hopefully they will now have the courage to come forward and give us the information which will bring her killer to justice."
Mrs Crown was last seen alive on January 11 2013 but had spoken to a friend by telephone at about 5pm the following day.
Her body was discovered by a family member the next morning.
A £10,000 Crimestoppers reward is on offer for information which leads to the arrest and conviction of those responsible for the murder.