A former police detective looking into the mysterious murder of Nairn banker Alistair Wilson is “building on his case” to find a killer – and has asked for permission to interview his widow Veronica.
Peter Bleksley, who spent 21 years with the Metropolitan Police, believes he has discovered a motive for the killing.
Earlier this month he flew into the Highlands and spent several days interviewing “interesting sources” to gather evidence to hopefully prove his theory.
He said the investigation had “moved forward” significantly.
He added: “I am busy progressing my inquiry. Members of the public are continuing to reach out and make contact with me. Information and intelligence continues to come my way, for which I am extremely grateful.
“I have been contacted by phone, text, e-mail and social media with information.
“I think I have discovered potentially a very credible motive for the murder.”
He said he continued to “put some flesh on the bones”.
Mr Bleksley has provided police with a list of questions he would like to ask the victim’s widow Veronica.
For now, he is reluctant to reveal what he believes to be the motive behind the 13-year mystery.
Father-of-two Mr Wilson was a business manager with Bank of Scotland when he was murdered on the doorstep of his home at the age of 30.
He was shot three times on November 28, 2004, by the killer, who had arrived at the family home just as he was getting his children ready for bed.
Mr Wilson was handed an envelope by the murderer, went inside to speak to his wife Veronica, before returning to the door, where he was shot.
Police have been unable to determine a motive for the killing and have no suspects.
A gun, which has been confirmed as the murder weapon, was discovered several days later in a drain.
Mr Bleksley, who helped set up Scotland Yard’s undercover SO10 unit, is revisiting Mr Wilson’s killing for a book looking at Britain’s most baffling murders.