Police say their investigation continues into the murder of Michael Griffiths, whose body was found following a fire at his home in Fernhurst in January.
Officers are speaking to members of the antique trade locally who were acquainted with Mr Griffiths or may have had business dealings with him.
Det Ch Insp Jeff Riley said: "We have identified that Michael had a keen interest in militaria and attended a number of fairs at Bisley.
"I would appeal to anyone who knew him or has any information about his business activities, either through the antiques trade or the militaria meeting, who have not spoken to us, to get in touch.
"We have not ruled out any potential motive for Michael's murder.
"We have not identified the two youths or men who called at his home earlier in the week and snowballed the house when he answered.
"We do know that when they called they claimed to be police officers, so at this stage, we are still connecting them with the enquiry.
"We are very keen to establish who they were and if anyone else had the same experience or saw them in the area on the Tuesday night (January 22) before the fire.
"Similarly, we have not yet traced the black SUV or 4x4 that was seen in the area on the morning of the fire and as a result, this remains a suspicious vehicle of interest to us.
"The crime scene was severely damaged by the fire and as a result the associated forensic work was exhaustive and complicated. We have established that accelerants were used to start the fire.
"I am determined that those responsible for Michael's death will be brought to justice. If you have any information, no matter how small, that could assist us with our enquiry, please contact Sussex Police on 101 quoting Operation Killick."
Scene of the tragedy in Fernhurst Credit: ITV News Meridian
Detectives investigating the murder of 59-year-old Michael Griffiths in West Sussex on Thursday last week will be asking for help from walkers and drivers in Fernhurst this morning. Police will be talking to people around Mr Griffiths's home in Old Glebe from 6.30am.
Detective Chief Inspector Jeff Riley from the Surrey and Sussex Major Crime Team said: "We are hoping that by talking to people who regular use the roads and footpaths around Michael's house, we might nudge someone's memory about something that just wasn't quite normal or usual."
The house at Fernhurst after the fire Credit: ITV News Meridian
Detectives investigating the murder of 59-year-old Michael Griffiths in West Sussex on Thursday last week will be asking for help from walkers and drivers in Fernhurst this Wednesday and Thursday mornings. Police will be talking to people around Mr Griffiths's home in Old Glebe from 6.30am.
Detective Chief Inspector Jeff Riley from the Surrey and Sussex Major Crime Team said: "We are hoping that by talking to people who regular use the roads and footpaths around Michael's house, we might nudge someone's memory about something that just wasn't quite normal or usual."
Detectives from the Surrey and Sussex Major Crime Team have opened a murder enquiry after a man was found dead following a house fire in Fernhurst on Thursday. They say he may have been specifically targeted. Detective Chief Inspector Jeff Riley, who is leading the enquiry, said:
"Smoke patterns on a couple of the windows suggest that they were open when the fire broke out... The post mortem has revealed that Mr Griffiths suffered serious injuries to his head and body but at this stage it is not possible to firmly conclude that they were the cause of his death."
A man whose body was found in a burning house in Fernhurst had been seriously assaulted before his death. Fifty nine year old Michael Griffiths was found by firefighters at his home in Old Glebe Road on Thursday morning.
A post mortem examination has not established his cause of death and further tests are being carried out.
A fatal fire - in which a man in his 50s died yesterday - is now being treated as murder by Sussex Police. The victim is believed to be 59-year-old Michael Griffiths who lived at Old Glebe in Fernhurst. Officers from the Surrey and Sussex Major Crime Team have now launched a murder investigation.
Detective Chief Inspector Jeff Riley said: "When police and fire investigators were able to enter the property, it was established that Mr Griffiths's body had been lying by the front door, blocking entry and forcing firefighters to remove the door to get in.
"On Thursday evening we were advised by our fire service colleagues that there was a suspicious seat of fire near a window in the lounge at the rear of the property. Additionally, a couple of windows appeared to have been opened before the fire took hold." A post mortem will take place later.
