More than 100 police officers and staff are now involved in trying to track down the killer who brutally stabbed Peter Wrighton in Norfolk woodland.
The 83-year-old was found dead some six miles from his home village of Banham between Attleborough and Thetford.
Out walking his two dogs, Mr Wrighton was stabbed in the head and neck.
More than two hundred people have already come forward to help in the police inquiry but officers are still trying to trace key witnesses.
- Click to watch a report by ITV News Anglia's Malcolm Robertson
- Click to watch a report by ITV News Anglia's Raveena Ghattaura
Police hunting the killer of an 83-year-old man in Norfolk have released CCTV imagery of the victim filmed just hours before he was killed.
Peter Wrighton from Banham was found stabbed to death in woodland at East Harling near Thetford. He had been out walking his two dogs.
The video was taken as Mr Wrighton visited a local shop
Detectives are now appealing for three "vital" witnesses to come forward to help find his killer.
- White man, aged over 50, of a slim build with pale skin with grey or white hair which is balding on top. It is believed he was wearing heavy rimmed glasses and light coloured trousers. He was seen in The Street changing into a white t-shirt.
- White man with a tanned complexion, aged 25-30 years, between 5’9’’ and 5’11’’ tall. He is of an athletic build with short dark wavy hair and dark eyes. It is believed he was wearing a grey or blue t-shirt and grey floppy gym style shorts above the knee and heavy duty flip flops. He was seen within the boundary marked on the map in red.
- White man, aged 30 to 50 years old, of a medium build wearing dark coloured clothing. He was seen walking without a dog in the northern area of the heath.
"On behalf of Peter’s family, we continue to ask for information.
"We want to hear from you if you are someone who knows this area or frequents it, perhaps to walk or run.
"We want to hear from you if you have seen Peter walk his dogs in that area or nearby in recent weeks or months, but especially on Saturday 5 August."
An inquest has heard that the elderly man found murdered in Norfolk woodland died from a stab wound to the neck.
Peter Wrighton, 83, was found dead on Saturday 5 August in woods at East Harling near Thetford. He had left his home in Banham to walk his two dogs.
The inquest heard that Mr Wrighton's wife Ann identified his body at the Norfolk and Norwich Hospital on Tuesday.
Norfolk detectives believe that the public may hold the key to finding the killer.
"I would like to reassure the public that we are following several lines of enquiry and are pleased the public are supporting us in our investigation.
"We have received more than 100 calls in the last three days and we would continue to urge people with information, particularly those who were in the area between 9am and 11am, to make contact."
Norfolk Police contact lines - 0800 056 0944 or 0207 158 0010
Detectives hunting the killer of Norfolk pensioner Peter Wrighton have set up dedicated phone lines in a bid to get information that could help find the murderer more quickly
The Operation Graduate telephone numbers, 0800 056 0944 or 0207 158 0010, are being manned by communications officers from Norfolk Constabulary and neighbouring forces.
Norfolk's County Policing Commander, Chief Superintendent Mike Fawcett, said:
We remain concerned that we have not yet been able to trace the person or people responsible for Peter's death. I would ask people to remain vigilant and to contact us if they see anything suspicious.
A friend has been paying tribute to murdered pensioner Peter Wrighton. The 83 year old was walking his dogs at East Harling not far from his home at Banham in Norfolk on Saturday when he was killed.
Phil Moore knew him through their love of dog walking and through the donations that Mr Wrighton made to the local foodbank.
Earlier he told ITV Anglia reporter Malcolm Robertson he still can't believe what's happened and that his friend is gone.
Click below to watch the interview
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Local people are being urged to search their bins in the hunt for the knife used to kill an elderly man in woodland in Norfolk.Read the full story ›
South West Norfolk MP Liz Truss says she's 'deeply shocked and saddened' after an elderly man was stabbed to death in some woodland in her constituency.
The 83-year-old victim was killed as he walked his two dogs in the woods at East Harling near Thetford on Saturday morning.
His name hasn't yet been released yet and police still aren't clear what the motive was behind the attack.
I am deeply shocked and saddened by reports of the death of a local man in woodland near East Harling.
My thoughts are with the victim’s family and friends at this devastating time.
The woods in Norfolk where a man was stabbed to death has a reputation for being a drug-dealing hotspot, according to a local resident.Read the full story ›
Police are hunting the killer of an 83-year-old man found brutally stabbed to death in woodland in Norfolk.Read the full story ›