On November 28 2004 Alistair Wilson spent the perfect Sunday rambling along the blustery Scottish coast with his wife Veronica before returning home for dinner and to tuck his two young boys into bed.
Hours later a strange man came to the door asking to speak to the 30-year-old banker.
The events that unfolded in the following few minutes would see Mr Wilson brutally gunned down on his doorstep – shot twice in the head and once in the body – and his wife and children without a husband and father.
The investigation into his murder stunned Scottish police and remains one of the most baffling unsolved cases in its history.
On November 28 2004 Alistair Wilson (pictured) spent the perfect Sunday rambling along the blustery Scottish coast with his wife Veronica before returning home for dinner and to tuck his two young boys into bed – hours later he was murdered
Hours later a strange man came to the door of his townhouse in Nairn, Scotland (pictured) asking to speak to him – a few minutes later Mr Wilson was gunned down
The investigation into his murder stunned Scottish police and remains one of the most baffling unsolved cases in its history. But new leads have given investigating officers and his family fresh hope
But two new leads and pioneering DNA technology have given police fresh hope they could finally find out what happened – and get justice for the Wilson family.
This weekend a gun, identical to the 1920s Haenel Schmeisser that killed him, turned up at a local house clearance sale.
A caller has also rang in to a radio station saying they know more information about the crime.
Police Scotland are also planning to re-run DNA tests on key pieces of evidence with new technology introduced in 2015 that tests 24 elements of someone’s DNA – instead of the previous 11.
They think this could lead them to the murder.
This weekend a gun, identical to the 1920s Haenel Schmeisser that killed him (pictured), turned up at a local house clearance sale
Speaking on the 13th anniversary of the killing this week, Detective Superintendent Gary Cunningham: ‘Recently we have seen a number of theories and rumours put forward about the motive behind Alistair Wilson’s murder.
‘Our investigation has previously looked into these theories. As part of a thorough ongoing investigation we have to remain open-minded and will continue to review all scenarios.
‘Additionally, we constantly review advances in forensic science. There has been significant investment in improving our DNA technologies in the last few years.
‘With the advent of DNA24, we are now obtaining DNA profiles from items which, when previously tested, had not produced a profile.
‘As such, we are continuing to review the items suitable for further testing in this case.
He was a husband to Victoria (pictured) and two young boys, aged two and four at the time
‘This crime has left a family devastated. Someone out there knows why Alistair was killed and who was involved in his murder and I would appeal to them to come forward.’
Veronica Wilson also spoke of her grief and how the family have struggled to come to terms with her husband’s unexplained death.
She said: ‘It would mean the world to us to have Alistair’s killer brought to justice. As a family, it has been difficult to understand why someone would do this.
‘It has been a dark shadow over us for the past 13 years.
‘We will always remain hopeful that the person who killed Alistair will be caught and I would urge anyone who has information to come forward.’
Veronica Wilson (pictured) also spoke of her grief and how the family have struggled to come to terms with her husband’s unexplained death. She said: ‘It would mean the world to us to have Alistair’s killer brought to justice. As a family, it has been difficult to understand why someone would do this’
Originally the police investigation focused on Mr Wilson’s career with the Bank of Scotland.
He worked for them in Edinburgh before moving to Nairn 18 miles from Inverness, where he worked with small companies across the Highlands and Islands.
A former detective on the case told The Times: ‘It could have been something he refused to get involved in that led to his death.
‘Bear in mind at that time you had guys at his level signing off on millions, with little or no audit.’
Speaking on the 13th anniversary of the killing this week, Detective Superintendent Gary Cunningham (pictured): ‘Our investigation has previously looked into these theories. As part of a thorough ongoing investigation we have to remain open-minded and will continue to review all scenarios,’
The force has insisted Mr Wilson was not involved in any malpractice.
Mrs Wilson has never re-married and still lives in the townhouse where her husband was killed.
Peter Bleksley, who spent 21 years with the Metropolitan Police, has been carrying out his own investigation as part of a book he is writing.
He says he has ‘a credible thread for a motive’ and believes the net is closing in on the killer.
He said: ‘If I was the perpetrator, I would be worried.’
Alistair Wilson spent the day strolling around Culbin Forest before he returned to his house in Nairn, where he was gunned down on his doorstep