A murder inquiry which shook a community will appear on BBC's Crimewatch tonight in order to try and shed some new light on the incident.
Detective Superintendent Nick May will appear on the programme to make an appeal in the Bosham murder inquiry.
Valerie Graves was found dead with significant head and facial injuries at a house in Smugglers Lane, Bosham, on Monday December 30.
She and other members of her family had been staying at the property housesitting while the owners were away over the Christmas period.
Det Supt May from Surrey and Sussex Major Crime Team will appeal for information and talk about the weapon, a hammer which police believe was used to kill Miss Graves.
This was found by police in Bosham during extensive searches.
He said: "We are still appealing for information and would like to hear from anyone who say anything suspicious or unusual in the area from the afternoon of Sunday 29 December to 10am on Monday 30 December."
Crimewatch is on BBC1 tonight at 9pm.
Chief Inspector Justin Burtenshaw, district commander for Chichester, said there were extra neighbourhood police officers in Bosham who were doing daily patrols as well as scene guards.
He said: "Any residents who have concerns or have any information should speak to the officers who are ther in Bosham."
Anyone with information should ring 101 quoting Operation Ensign or email firstname.lastname@example.org or ring the independent charity Crimestoppers anonymously on 0800 555111.