DETECTIVES have no clue who killed a dog walker or why — seven weeks after his body was found.
Baffled cops hunting Brian Low’s murderer still haven’t identified a suspect or motive despite intense activity in the area.
The struggle for leads comes after they previously admitted evidence may have been lost at the murder spot due to delays in realising he’d been shot.
And a retired detective said the failure to lock down the scene could prove ‘catastrophic’ in the hunt for the marksman.
The 65-year-old former groundsman was gunned down on a remote track near Aberfeldy, Perthshire, on February 17.
Last night a police insider said: “The investigation team are struggling.
“Despite carrying out hundreds of interviews there is still no established motive and no details about a suspect.
“Forensics have been unable to link anyone to the scene.
“Normally evidence comes to light within days. Who knows if they will ever find the killer.”
Ex murder squad cop Peter Bleksley said: “Not securing the crime scene means the area could have been compromised.
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“The simple rule when a body is discovered is to think murder until proven otherwise. The officers didn’t follow this.
“That could prove catastrophic for finding who was responsible.”
We told how cops initially treated the ex-groundsman’s death as “medical or non-suspicious” before a post mortem established he had been blasted in the neck and chest.
It meant a murder probe was only announced six days after his body was found.
Locals have told of their fears the shooter is still in the area.
The police watchdog is currently probing the early days of the investigation after being ordered to by the Crown Office.
Police Scotland said: “Enquiries are ongoing.”