An 83-year-old man, who was stabbed to death while walking his dogs in a village in Norfolk, was involved in an argument shortly before he was killed, it has been reported.
A man in his 20s has been arrested on suspicion of murder over the death of an elderly dog walker.
The details of the three people, who were not necessarily seen together, came from witnesses in the area at the time.
Wrighton had driven to the woodland in a red Skoda Fabia to walk his two dogs, a foxhound cross and a trailhound cross.More news: Hundreds honor Justine Damond at memorial
Mr Wrighton's last known sighting was within the Kenninghall Post Office between 10.08am and 10.12am on Saturday.
Elizabeth Truss said: "I am deeply shocked and saddened by reports of the death of local man in woodland near East Harling". His dogs, Dylan and Gemma, were found close by. He is described as being of athletic build with short dark wavy hair and dark eyes.
One is aged 25 to 30, with tanned skin, was was wearing a grey or blue t-shirt, grey gym shorts and heavy-duty flip flops.
The second man is described as a white male, aged between 30 to 50-years-old, of medium build and wearing dark-coloured clothing.More news: Inc. Has $671000 Stake in Laboratory Corporation of America Holdings (LH)
"As part of our comprehensive enquiries, we are now in a position to appeal directly to a number of people who may be able to provide us with information that could be vital".
"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".
"We want to help Peter's family and the people in the local area to understand what happened", he said.
They also said they needed the "agreement of the coroner's officer" to release the identity of the victim.More news: Liberty Media Corporation - Ser (NASDAQ:FWONK) Experiences Heavier than Average Trading Volume
Inquiries are continuing. Anyone with information should contact Norfolk police immediately on 0800 056 0944 or 0207 158 0010, quoting "Operation Graduate", visit the mobile police station or alternatively contact Crimestoppers anonymously on 0800 555 111.
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